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Lots of ISS passes coming up.
- paulevans
- Visitor
16 years 7 months ago #68447
by paulevans
Replied by paulevans on topic Re: Lots of ISS passes coming up.
Seanie, that's low and high in terms of the horizon, not the ground.
The ISS is in an orbit inclined to the equator by 51.8deg, thus the highest latitude where it can appear directly overhead is 51.8deg N - ie just North of London. At higher latitudes it will appear in the southern part of the sky to a greater or lesser degree - here in Larne it never gets more than 43deg above the horizon - you'll do better where you are. Some of the current and upcoming passes are as high and bright as they come!
The ISS is in an orbit inclined to the equator by 51.8deg, thus the highest latitude where it can appear directly overhead is 51.8deg N - ie just North of London. At higher latitudes it will appear in the southern part of the sky to a greater or lesser degree - here in Larne it never gets more than 43deg above the horizon - you'll do better where you are. Some of the current and upcoming passes are as high and bright as they come!
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- Seanie_Morris
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16 years 7 months ago #68449
by Seanie_Morris
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
Replied by Seanie_Morris on topic Re: Lots of ISS passes coming up.
Ah right, I know what you mean Paul, but never thought of it like that in terms of 'altitude'. Thanks.
:oops:
:oops:
Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.
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- dave_lillis
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- Super Giant
16 years 7 months ago #68471
by dave_lillis
There is an 84 degree altitude pass on 22 May at 5.01 am, I've never seen it so high, but almost all of the other passes between now and the end of May are very low with only 4 out of the 35 or so passes reaching a decent altitude, but if you have a flat southern horizon, go for it.
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
Replied by dave_lillis on topic Re: Lots of ISS passes coming up.
oops my heavens above settings were somehow wrong.Some of the current and upcoming passes are as high and bright as they come!
There is an 84 degree altitude pass on 22 May at 5.01 am, I've never seen it so high, but almost all of the other passes between now and the end of May are very low with only 4 out of the 35 or so passes reaching a decent altitude, but if you have a flat southern horizon, go for it.
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)
Carrying around my 20" obsession is going to kill me,
but what a way to go.
+ 12"LX200, MK67, Meade2045, 4"refractor
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- pj30something
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- Super Giant
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16 years 7 months ago #68479
by pj30something
Paul C
My next scope is going to be a Vixen VMC200L Catadioptric OTA
Replied by pj30something on topic Re: Lots of ISS passes coming up.
but if you have a flat southern horizon, go for it.
Grand. All i have to do is move the Dublin/Wicklow mountains.
Anyone got a spade?
Grand. All i have to do is move the Dublin/Wicklow mountains.
Anyone got a spade?
Paul C
My next scope is going to be a Vixen VMC200L Catadioptric OTA
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