meteor!

Post by **weixing** » Thu Jan 19, 2006 5:59 pm

Hi,

urm wei xing, does orion stays on singaporean skys everynight?

In equator, no constellation stay visible every night.

In equator, you can see around of 3 season or around 75% of the whole sky in a night... the season before, the current season and the season after.

Have a nice day.

river · Post by **river** » Thu Jan 19, 2006 6:24 pm

for northern hemisphere,

Winter : Orion
Spring : Big Dipper
Summer : The Summer Triangle
Fall: The square of Pegasus

Post by **weixing** » Thu Jan 19, 2006 6:41 pm

Hi,

for northern hemisphere,

Winter : Orion
Spring : Big Dipper
Summer : The Summer Triangle
Fall: The square of Pegasus

Err... He is asking for constellation, so other than Orion, the rest is not a constellation...

Anyway, Big Dipper is part of Ursa Major, The summar Triangle is made up of three bright stars... Vega of Lyra, Deneb of Cygnus and Altair of Aquila and The Square of Pegasus is form by Alpha, Beta and Gamma of Pegasus and Alpha of Andromeda.

Also, in location that near the pole, some constellation never set.

By the way, to know exactly what constellation(s) can be seen in a certain time and date, refer to a star chart that indicate the time frame when the constellation is visible, use a planetarium software or look for it in the internet.

Have a nice day.

river · Post by **river** » Fri Jan 20, 2006 1:35 pm

Weixing is right! Sorry if I confused you..

I was thinking of the stars that mark the seasons of time.

soulfrost · Post by **soulfrost** » Sat Jan 21, 2006 3:04 am

err.... funy... i always see orion in e sky =,=''

so iow, singapore skys have only 75% chance of seeing stars?

neoterryjoe · Post by **neoterryjoe** » Sat Jan 21, 2006 9:13 am

Hi!
75% as in you can see around 75% of all the contellations if you stay up for the whole of the night till the morning for ANY one night. To see the other 25%, you have to wait for the Earth to rotate around the sun(ie. wait for the next season) to be able to see.
If you talk about the chance of seeing stars in Singapore, it will be <10% as the skies are so bad

. i hope i m not confusing you...

Post by **weixing** » Sat Jan 21, 2006 11:34 am

Hi,

err.... funy... i always see orion in e sky =,=''

Orion will be always visible during this period of time till around mid of May.

so iow, singapore skys have only 75% chance of seeing stars?

No. I said that you can see around 75% of the sky in a night, not 75% chance of seeing stars... You can see stars as long as the night sky is clear.

75% as in you can see around 75% of all the contellations if you stay up for the whole of the night till the morning for ANY one night.

Hmm.... Never actually check on this, but since every constellation size is different... some small, somel big, so I don't think the constellations are spread out evenly in the sky... So I think how many constellations can you see in a night will depend on your location and the date of observation.

Anyway, it getting out of topics here. Create a new thread if got more question.

Have a nice day.

ykchia · Post by **ykchia** » Sun Jan 22, 2006 8:17 am

Hi folks:

Just uploaded- jan 14 meteor image and video ( Window Media player format).

http://www.ykchia.com/jan_feb_mar.htm