Astronomy events schedule

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  • #201
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Sounds like Antares (red toward the south) and Arcturus (orange, overhead in the evening).
After looking at pictures of Antares it does look like it could be what I'm seeing. Although the object I see looks relatively smaller than most of the other stars around it.

And yes I am looking to the south when I see the other object. Pictures of Jupiter do look pretty similar. I'll try to get pictures tonight guys. thanks :D
 
  • #202
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7


November is perhaps my favorite month to watch the sky. It of course, is the hunters moon, but Saturn hangs out just to the left of it for the next few days.
Keep a eye out 17th, The Leonid meteor showers peek performance!
 
  • #203
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Earth v. Moon

Sorry, I'm a newbie here and didn't know how to start a new thread, so I figured I'd post a question in this one since it has a lot of subscribers.

I'm arguing with a friend about how a half-Earth would appear from the Moon. Since we see the Moon in phases, it makes sense that watching the Earth from the Moon would also offer the same phenomenon, Full Earth, Half Earth, New Earth. My question is if one is looking at a Half Earth from the Moon, would the shadow line appear horizontal or vertical.

My belief is that since the Moon is in a roughly equatorial orbit around the Earth, then the equators of the two objects are facing each other, with their axes within a few degrees of being parallel. Since we see the Half Moon as vertical from here, I conclude since there is no mechanism I can envision which would alter the perception, it should appear as a vertical line on the Earth as well.

My friend believes the shadow line should appear horizontally across the Earth.

I'd welcome any comments or explanations.
 
  • #204
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  • #205


Sorry, I'm a newbie here and didn't know how to start a new thread, so I figured I'd post a question in this one since it has a lot of subscribers.

I'm arguing with a friend about how a half-Earth would appear from the Moon. Since we see the Moon in phases, it makes sense that watching the Earth from the Moon would also offer the same phenomenon, Full Earth, Half Earth, New Earth. My question is if one is looking at a Half Earth from the Moon, would the shadow line appear horizontal or vertical.

My belief is that since the Moon is in a roughly equatorial orbit around the Earth, then the equators of the two objects are facing each other, with their axes within a few degrees of being parallel. Since we see the Half Moon as vertical from here, I conclude since there is no mechanism I can envision which would alter the perception, it should appear as a vertical line on the Earth as well.

My friend believes the shadow line should appear horizontally across the Earth.

I'd welcome any comments or explanations.
Thats simple really look at the google results from "earth images from the moon"

http://images.google.com/images?rlz=1C1RNNN_enUS357US361&sourceid=chrome&q=pictures+of+earth+from+the+moon&um=1&ie=UTF-8&ei=Kt12S-2eIdDdlAfb8rmiDw&sa=X&oi=image_result_group&ct=title&resnum=1&ved=0CBgQsAQwAA

hope that helps, a picture is worth a thousand words they say
 
  • #206
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Have you heard about that? A huge meteor (bolida) hit the atmosphere in 28th February somewhere in Hungary or Slovakia, at the border. It is possible that some remnants hit the ground as well. A lot of people heard ans saw the blast, there are seismology data as well. These are now under evaluation.

http://www.rtlhirek.hu/video/84397

2 minutes (in Hungarian)
 
  • #207
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Thanks. No, I hadn't heard about it. I'm having my Hungarian native uncle translate it for me tomorrow.
 
  • #208
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Hi,

I recommend the hirek.csillagaszat.hu website, as a trustworthy source of astronomy news in Hungarian. (non-profit, and the news are edited and reviewed by professional and amateur astronomers together.)

http://hirek.csillagaszat.hu/meteoroidok,_meteorok/20100301-tuzgomb-magyarorszag-felett.html [Broken]
Title is: "Now it is clear: a bolid has exploded over Hungary"

Kind regards,
TtM
 
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  • #209
208
1


The moon is in conjunction with Antares right now. Go take a look!
 
  • #210
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Not sure if this counts but... It's an event non-the-less...

Space Weather Message Code: WARSUD
Serial Number: 73
Issue Time: 2010 May 28 0220 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2010 May 28 0245 UTC
Valid To: 2010 May 28 0345 UTC
IP Shock Passage Observed: 2010 May 28 0203 UTC



NOAA Space Weather Scale descriptions can be found at
"www.swpc.noaa.gov/NOAAscales"[/URL][/QUOTE]

[PLAIN]http://www2.nict.go.jp/y/y223/simulation/realtime/index.html" [Broken]

http://www.swpc.noaa.gov/alerts/warnings_timeline.html" [Broken]
 
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  • #211
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I never considered the weather in space to be an event but you never know.
 
  • #212
Astronuc
Staff Emeritus
Science Advisor
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Two Asteroids to Pass by Earth Wednesday
http://www.jpl.nasa.gov/asteroidwatch/newsfeatures.cfm?release=2725 [Broken]

Asteroids 2010 RX 30 and 2010 RF12 will make their closest approach to Earth this Wed. At time of closest approach for 2010 RX 30 (2:51 a.m. PDT), it will be approximately 154,000 miles (about 248,000 kilometers) above the North Pacific, south of Japan. At time of closest approach for 2010 RF12 30 (2:12 p.m. PDT ), the asteroid will be approximately 49,088 miles (about 79,000 kilometers) above Antarctica.
 
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  • #213


why auroras exist near alaska ??

Its bcoz of something called "Magnetc bottle" phenomenon. Near poles earth's magnetic field lines converge.
 
  • #214


Anyone checking out the Geminid shower?
I believe it starts tonight through 12/15
 
  • #215
1,134
7


I was out this morning around 2AM, and lost count after seeing about 30. I believe it was at its peek last night. It was beautiful.
 
  • #216
Jonathan Scott
Gold Member
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I was out this morning around 2AM, and lost count after seeing about 30. I believe it was at its peek last night. It was beautiful.
I had a brief look for 5 minutes last night, through thin patchy cloud, and saw one small flash and one surprisingly bright reddish-orange glowing ball which seemed to move relatively slowly, leaving a bright trail, visible for a few seconds.
 
  • #217
russ_watters
Mentor
19,251
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I was out this morning around 2AM, and lost count after seeing about 30. I believe it was at its peek last night. It was beautiful.
How long were you out?
 
  • #218
1,134
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I was frozen stiff under perfectly clear skies, by 4AM.
 
  • #219
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The darkest I have ever seen was one night when a magnitude 6.9 star could be seen, but this is very rare. Magnitude 11 is usually considered near the limit for a good 8 inch telescope. I heard from a math major who's taking the astronomy class at my school that there is a nebula or a new star forming in Orion's belt.


http://www.watch-eureka-online.com/" [Broken]
 
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  • #220
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Lunar eclipse and winter solstice to coincide, first time since the year 1378

Coincidences: This lunar eclipse falls on the date of the northern winter solstice. How rare is that? Total lunar eclipses in northern winter are fairly common. There have been three of them in the past ten years alone. A lunar eclipse smack-dab on the date of the solstice, however, is unusual. Using NASA's 5000 year catalog of lunar eclipses and JPL's HORIZONS ephemeris to match eclipses and solstices, author Dr. Tony Phillips had to go back to the year 1378 to find a similar "winter solstice lunar eclipse."

http://science.nasa.gov/science-news/science-at-nasa/2010/17dec_solsticeeclipse/
 
  • #221
Redbelly98
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Science Advisor
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Here are the times at which the upcoming lunar eclipse will occur.

Night of Dec. 20 / morning of Dec. 21
The three times listed are Pacific (USA) and Eastern (USA)

Partial phase begins: 10:33 PM / 1:33 AM
Total phase begins: 11:41 PM / 2:41 AM
Total phase ends: 12:53 AM / 3:53
Partial phase ends: 2:01 AM / 5:01
 
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  • #222
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Well, I got a crappy hand-held pic...

Sorry, it's the best I could do.

I did see the ruddy red after midnight, though... Wonderful!

- Mugs
 

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  • #223
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Greetings:

I am looking for a formula to find the duration of sun's meridian transit for a given location and date.

Can anyone help out?
 
  • #224
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Saturn has been a joy to view this month. Even with a very small scope, you can clearly see the rings. If you look to the east, you will see 2 bright objects. One is the star Spica in the constellation Virgo, the slightly brighter one above it, is Saturn.
 
  • #225


Saturn is still out. Second time I've seen it in 5 years. Very bright, and it seemed as though I could see between the planet at the rings. I may be crazy though.
 

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