Iridium flares end with replacement satellites

AI Thread Summary
Iridium flares, which are bright reflections from satellites, are becoming increasingly rare, with the last opportunities to view them expected by the end of 2018. Observers noted that these flares can be impressive, reaching magnitudes of -6 to -8, but require precise longitude and latitude for accurate sightings. The discussion highlighted the challenge of distinguishing flares from meteors, which can interfere with meteor observation. Additionally, urban light pollution significantly hampers visibility, making it difficult for city dwellers to see celestial events. The conversation also touched on the potential for new industries focused on creating artificial flares for entertainment and advertising purposes.
Merlin3189
Homework Helper
Gold Member
Messages
1,733
Reaction score
824
For a long time I'd heard about Iridium flares, but not taken much trouble to see one. This week I took advantage of the uncommon spell of clear nights to pop out and look at a couple.
Not quite what I'd expected, so I went to look into them a little more. One of the things I discovered is that I nearly missed them. Soon they will be no more. (end of 2018.)

I'll leave others more expert than I to supply any more info, but suggest anyone who wants to see one, gets on to Heavens Above and takes advantage of their next anticyclone.
 
  • Like
Likes Aufbauwerk 2045 and russ_watters
Physics news on Phys.org
IMG_0512.jpg
 

Attachments

  • IMG_0512.jpg
    IMG_0512.jpg
    17.8 KB · Views: 413
  • Like
Likes davenn and jedishrfu
Somewhere over the rainbow, somewhere far...

as I gaze at @Borek 's starry photo.
 
Merlin3189 said:
...
Not quite what I'd expected, so I went to look into them a little more. . .
I've seen a couple of high magnitude, and those were pretty impressive . Very bright and lasting about 10 seconds. You need to have your longitude and latitude entered accurately, the swath that the reflection hits is narrow and the brightness drops off sharply.

But a - 6 ~ - 8 mag in your area, on a clear night will be rare.
 
Merlin3189 said:

I couldn't be happier :smile::smile::biggrin:

They are a BL@@DY nuisance ... look too much like meteors and screw up my nice meteor observations and photos

Dave
 
  • Like
Likes jedishrfu
davenn said:
I couldn't be happier :smile::smile::biggrin:
Is that the first time I've seen you smile?:rolleyes:

You should try living in a big city. There's not much to see in the sky dimmer than magnitude 1 this time of year. Good job I live near the airport.
 
Merlin3189 said:
Is that the first time I've seen you smile?:rolleyes:

haha you obviously don't follow me or know me well enough on PF …. go look at my posts in the lame and science jokes sections :smile:

Merlin3189 said:
You should try living in a big city.

I do, Sydney, Oz is over 5 million people and I am deep within the red zone ……

my sites.jpg


each of those 3 sites is around an hour's drive from home, they are not great, but I can do some imaging as long as it is in the 1/2 of the
sky in the opposite direction to the city centre
To really get out of the city sky glow, I need to travel up to 2 hrsDave
 

Attachments

  • my sites.jpg
    my sites.jpg
    51.3 KB · Views: 398
Back
Top