Have you witnessed a dazzling Iridium flare in the night sky?

In summary, the conversation shared experiences and observations of various astronomical objects through telescopes. Some examples include a geosynchronous orbit satellite, a rift on the moon, a fireball meteor, and the Andromeda galaxy. The group also discussed the phenomenon of TLP (tansite luna phenomona) and shared their favorite sights, including a Perseid bolide and Saturn. They also mentioned a strange shooting star-like object and the beauty of the lunar surface.
  • #1
Artman
1,512
36
What is the most interesting astronomical object you have observed through a telescope?
 
Astronomy news on Phys.org
  • #2
I know I've asked this question at an astronomy forum before, but I don't think I had asked it here. The purpose is to find other things to look for when using my telescope.

One of the neatest things I have seen is a geosyncronous orbit satelite that had seemed to have fallen out of orbit. It appeared in the telescope as a faint blinking light (probably light reflected from the sun) that you could not view with your naked eye. It was moving very nearly the same as the night sky, but drifting slightly. Imagine my surprise at seeing a light blinking at me from 22,000 miles up!
 
  • #3
"Rupes Recta"

When I bought my first telescope at age 13 and was observing the moon, I could make out a 1 mile wide deep rift that looked like a piece of hair on a dirty mirror. Craters 5 miles wide are marked on maps that I have and can be seen but not one 1 mile wide. I thougt it was pretty neat to be able to see such a small detail so far away. If not for its length it would not be visible with a small telescope, at any rate it is not visible anymore to me as my eyes are getting worse.

Have you ever seen TLP on the Moon?
 
  • #4
I don't know if this really counts as an astronomical object, but one time while I was looking at the andromeda galaxy through the telescope a fireball meteor flared up in my field of view. Very interesting sight.
 
  • #5
My first sight of Saturn, through a small 'scope, at a very young age ... I just couldn't believe something so beautiful would seem just like any other (bright) star when seen without a telescope.
 
  • #6
LastOneStanding said:
I don't know if this really counts as an astronomical object, but one time while I was looking at the andromeda galaxy through the telescope a fireball meteor flared up in my field of view. Very interesting sight.

This is cool. I have seen that happen as well, one flared right in front of my eyes in the scope.

I still love to look at the moon in its various phases.

Saturn also still impresses me.

Rader, what is "TLP"?
 
  • #7
My all time favorite was not something I saw through my telescope, but something I saw while setting up my telescope. I was setting up my new JSO 5" (VERY nice scope, if you can find one used) one August night (1980, I think) and was tightening up the tripod braces when the ground lit up and the shadows of the tripod legs started sweeping across the ground. I looked up to see a HUGE Perseid bolide that split and flared repeatedly, like fireworks. When it faded out, I kept staring at the sky, dumbfounded, and noticed that there was a bright streak in the sky in the path of the bolide. At first, I thought it was "retina burn-in", which I soon dismissed because it was bright, not dark. As I watched the streak, it slowly drifted off to the east and faded, and several minutes later it was gone. It drifted and dissapated very much like a jet contrail. I've seen and photographed lots of stunning stuff through my scopes (now have a 6" Astro Physics refractor), and have witnessed two total solar eclipses, but that Perseid is my "all-time" best.
 
  • #8
"TLP"

Artman said:
Rader, what is "TLP"?

Short for tansite luna phenomona. That the translation but what it is, only heavens knows. I have spent almost 40 years looking at the moon with a number of different telescopes. The suns rays enter into the many thousansds of craters on the moons surface on a constantly changing angle, due to the moons movement, N=S and E=W, that's why you can see some of the darks side of the moon, sometimes. They are light flashes that appear to come out of the craters. You can observe for years before seeing one.
 
  • #9
Andromeda galaxy. An awesome sight even through my tiny 6" scope.
 
  • #10
turbo-1 said:
...I looked up to see a HUGE Perseid bolide that split and flared repeatedly, like fireworks. When it faded out, I kept staring at the sky, dumbfounded, and noticed that there was a bright streak in the sky in the path of the bolide. At first, I thought it was "retina burn-in", which I soon dismissed because it was bright, not dark. As I watched the streak, it slowly drifted off to the east and faded, and several minutes later it was gone. It drifted and dissapated very much like a jet contrail...

I saw a similar thing, but we missed the initial break up. I posted a question here about it a long time back.

Strange sight in night sky


Chronos said:
Andromeda galaxy. An awesome sight even through my tiny 6" scope.

Absolutely. Even pretty good in a 4-1/2" scope.
 
  • #11
Rader said:
Short for tansite luna phenomona. They are light flashes that appear to come out of the craters. You can observe for years before seeing one.

Thanks Rader.

That's why I still find it great to observe the moon, you never know what you might see. It is afterall an alien landscape.
 
  • #12
Okay. I also didn't see this through my telescope but whilst sitting out one night with my friends, this amazing shooting star type thing plummeted through the sky coming from apparently nowhere then disappearing after about 2 seconds. I've seen normal shooting stars but they've never been that bright nor that fast. It was quite spectacular. Two other of my friends also saw it so I wasn't seeing things. Still haven't figured out what it was though!
 
  • #13
The most interesting thing I saw through a telescope was Saturn. Number tow is looking at the Lunar surface. :smile:
 
  • #14
Shahil said:
...I've seen normal shooting stars but they've never been that bright nor that fast. It was quite spectacular...Still haven't figured out what it was though!

Years ago when I first got my first telescope, an Edmund Scientific 3" reflector, I saw something moving slowly across the sky. It was day time and I was outside looking at trees for birds with my scope (a reflector scope is not the best for this, but you use what you have) and this huge rock like thing came flying high across the sky. I was able to get it into my scope and follow it, that's how slowly it was moving, but I could not bring it into sharp focus. It just looked like a big rock flying high in the atmosphere (because it was white with blue shadows on its surface, kind of the color of a high flying plane but with no wings). It flew along for a while then just disappeared. To this day I don't know what it was.
 
  • #15
Artman said:
To this day I don't know what it was.

It a bird its a plane its superman. :surprise:

So beat this who saw the biggest bolloid? On September 10, 1966 at 7:40 PM CST, while standing north looking towards Canada from the Chicago Subburbs, I saw, with my brother and two other witnesses. A bolloid the apparent size of the sun rip though US airspace in a near horizontal angle. It was dark and lite up, half of the entire sky, as if it was day. It lasted 20 seconds, no sound was heard but it was really big and seemed so close, with a nice fire tail, orange color, just like the sun. We were out in the neigborhood looking for UFO to spot, as 1966 and 1967 were good vintage years for that kind of stuff. If I remember right, that was the year Betty and Barney were abducted, close encounter of the third kind. Three large pieces landed between Mexico to northern Canada. Ronald Regan saw it when he was in a plane over the Chicago area. I immediately did my duty, nobody really wants to be invaded by Martians and called J. Allen Hyneck the foremost expert on UFO´s and told my story. He kindly reminded me, son that was a big bolloid. :tongue2:
 
  • #16
Hmm...okay brain freeze...can someone remind me what a bolloid is again?
 
  • #17
Do you mean bolide? As in very bright meteor (that leaves a trail)?
 
  • #18
Nereid said:
Do you mean bolide? As in very bright meteor (that leaves a trail)?

Yep correct, it was so large it gets a doble L. My memory is better than my spelling, its been a long time away from home. :smile:
 
  • #19
As tipical as it could seem, I still vote for the Pleiades, but my telescope is really bad, so perhaps I have missed some other sights
Also, the light pollution in my city doesn't help very much :mad:
 
Last edited:
  • #20
One bonus about living in a heavily light polluted area though: when you actually get away from the city and get a chance to really see the night sky, you sure appreciate it a whole lot more :smile:
 
  • #21
meteor said:
As tipical as it could seem, I still vote for the Pleiades...

I think that the open clusters, especially those with nebulosity, such as the Peiades, are great objects to observe. Things like double stars and triads and small systems are underestimated as well. I like to point out the Big Dipper to first timers and aim at Mizar and say "Do you see the bend in the handle, this is what is really there." I always get a "Whoa, that's cool when they see the four bright stars there."
 
  • #22
One of the real "kickers" that I show people with my 6" Astro Physics is the double-double in Lyra. I have them look in the 3" APO finder, then through the main scope at moderate magnification, then drop in a nice high-mag ocular and listen to them gasp or say "wow!" Of course, then it's time to hit the Ring Nebula. Another stunner (for the other half of the year) is the Orion nebula. The skies here are very dark and the nebula is beautiful. Then I show them the Trapezium under high magnification. When the sky is hazy, Jupiter and Saturn are great targets. These are objects that are so visually stunning that everyone appreciates them. You can bore a non-astronomer to tears showing them faint galaxies, etc, but you can hook 'em good with the great stuff. It's nice to remember the objects that were so impressive the first time we saw them, because they'll have a similar effect on other folks that are new to astronomy. I remember showing Comet Bradfield to a neighbor one night, and he was still mentioning it years later.
 
  • #23
turbo-1 said:
Another stunner (for the other half of the year) is the Orion nebula. The skies here are very dark and the nebula is beautiful. Then I show them the Trapezium under high magnification. When the sky is hazy, Jupiter and Saturn are great targets.

These are some of my favorites. The Ring and Dumbell Nebulas are also high on my list.
 
  • #24
I'd say M13 (hercules glob. cluster) or the Orion Nebula thru a 16" LX200 SCT :)...or Saturn thru that scope (i work at an observatory ;))...also the moon thru the 5" APO piggybacked on the 16" SCT we have is awesome.
 
  • #25
Physicsisfun2005 said:
I'd say M13 (hercules glob. cluster) or the Orion Nebula thru a 16" LX200 SCT :)...or Saturn thru that scope (i work at an observatory ;))...also the moon thru the 5" APO piggybacked on the 16" SCT we have is awesome.
So, lucky, working at an observatory :approve:

Which one?
 
  • #26
The object I like to view the most through my telescope is the globular cluster Omega Centuari. I have a thing for globular clusters and that one if far and away the best one there is.

47 Tuc is also a good one.
 
  • #27
Physicsisfun2005 said:
I'd say M13 (hercules glob. cluster) or the Orion Nebula thru a 16" LX200 SCT :)...or Saturn thru that scope (i work at an observatory ;))...also the moon thru the 5" APO piggybacked on the 16" SCT we have is awesome.

That's just too cool. M13 is great even in a 4.5" scope.
 
  • #28
whydoyouwanttoknow said:
The object I like to view the most through my telescope is the globular cluster Omega Centuari. I have a thing for globular clusters and that one if far and away the best one there is.

47 Tuc is also a good one.
Our friends in the north have to content themselves with smaller ones like M13 :wink:

Seriously, for those who do live in the northern hemisphere (above ~30N), have any of you had a chance to look at 47 Tuc or Omega Cen? What did you think of them?
 
  • #29
Buhl Observatory (light pollution is heavy but i manage ;) )
 
  • #30
I'll have to reiterate 47 Tuc and Omega C... Just incredible even in a small scope. I also love the triffid neb. So much structure in a small scope. And M42 of course...
 
  • #31
Physicsisfun2005 said:
Buhl Observatory (light pollution is heavy but i manage ;) )
That must be a fun job, even though Pittsburgh is a bit heavy on haze and light pollution. I attended the University of Maine at Orono starting in 1970, and loved visiting the school's observatory on nights when students were welcome. The observatory was TINY and had a old long-focal length 8" Clark refractor and some mostly primitive accessories, but it was always fun to look at Jupiter, Saturn etc. Of course, the light pollution in a heavily-lit college (safety first!) kills the deep-sky performance of even a great old 'scope like that. I have an old 6" f:8 Astro Physics that is "just" small enough to be portable to dark-sky sites (and Maine has LOTS of them).

Once, I told my observing buddy that I wanted to try to visually locate Leo I (very faint!) and he warned me off, saying it was too faint for a 6" of any design. I star-hopped to the field, and using averted vision and scanning techniques, managed to detect a brightening. I sketched it in relation to the faint field stars that didn't appear in my charts and showed him the sketch in my notebook. He studied the sketch and went back to the eyepiece, but coudn't see Leo I. I popped the OM-1 on for a short exposure and moved on to less demanding objects. I had the film developed the next day and it matched my sketch perfectly. This is an object that is supposed to be really demanding in MUCH larger scopes, but northern Maine's remoteness and dark skies combined with the high contrast of Roland's wonderful short-focus refractors works wonders.

The latitude here (45N) combined with the dark skies means that the most often cause of light pollution on clear nights is aurorae. Contrary to popular conception, it's not periodic bright shimmering curtains or transient spears of light - it's a frequently-experienced diffuse sky-glow that reduces contrast enough to make difficult observations impossible.
 
  • #32
I've had the chance to observe Omega Centauri through a, 24inch I believe it was. I was awe inspiring. Also saw many other objects but of course, for me that is the one that stood out in my memory the most.

I haven't gotten my scope out much in the last few years, but when I did (it's a 4inch Newtonian made by royal) I use to find all the globulas I could. Most just looked like little smudges but for some reason that's enough for me.
 
  • #33
Sorry that this doesn't quite address the question that was asked, but-

I used to go to a website that listed Iridium flares. The Iridiums were commsats which had big solar panels with a shiny film on them. Somebody computed when this or that place on Earth would be in the line of reflection of sunlight off the panels of a satellite, with easy visibility to the naked eye. I went out at night on about eight occasions, and I think on only one such occasion did I miss the flare, probably because I went outside a minute too late or was looking in the wrong part of the sky. The "flares" were much brighter than the reflection of sunlight off of any other kind of satellite I have seen, but they only last a few seconds, so you probably won't see one if you are not specifically looking for it.
 

1. What is an Iridium flare?

An Iridium flare is a phenomenon caused by sunlight reflecting off the large, flat surfaces of communication satellites in low Earth orbit. This creates a brief, bright flash of light in the night sky.

2. How often do Iridium flares occur?

Iridium flares can occur multiple times a night, depending on the location and time of year. However, not all flares are visible from every location on Earth.

3. How bright are Iridium flares?

Iridium flares can range in brightness from -8 to -1 on the magnitude scale, making them visible even in light-polluted areas. However, the brightness can vary depending on the angle of reflection and the satellite's position in the sky.

4. What causes the variation in brightness of Iridium flares?

The varying brightness of Iridium flares is due to the angle of the sun's reflection on the satellite's surface. If the angle is just right, the flare can appear much brighter than usual.

5. How can I see an Iridium flare?

To see an Iridium flare, you can use a satellite tracking website or app to find out when and where a flare will occur in your area. Then, go outside and look in the direction indicated at the right time. It's important to have a clear view of the sky with minimal light pollution for the best chance of seeing the flare.

Similar threads

  • Astronomy and Astrophysics
Replies
15
Views
2K
  • Astronomy and Astrophysics
Replies
17
Views
2K
  • Astronomy and Astrophysics
Replies
1
Views
652
  • Astronomy and Astrophysics
Replies
1
Views
892
  • Astronomy and Astrophysics
Replies
1
Views
759
Replies
16
Views
2K
  • Astronomy and Astrophysics
Replies
17
Views
2K
  • Astronomy and Astrophysics
Replies
5
Views
1K
  • Astronomy and Astrophysics
Replies
5
Views
1K
  • Astronomy and Astrophysics
Replies
4
Views
1K
Back
Top