2 Questions About Astronomy, Best Answer Will Get 10 Points.?

Question

I live at Hyderabad Pakistan ( 25°22′45″N 68°22′06″ E ). I try to identify some constellations but fail to do it because of light pollution and weak eyesight. Also I dont posses any optical aid so it is difficult to view constellations. I wanted to ask that which constellation is visible at 1:00 A.M while facing south in my city.

2: When Hubble Space Telescope and ISS are moving across the sky, do they leave a trail behind them???

Answer 1

Here's an interactive sky chart for you to look at..

http://www.astronomynow.com/sky_chart.sh...

And...no..the ISS and Hubble do not leave any trails behind them when they pass across the sky.

Answer 2

This online sky chart is good for a quick reference.  You select your location and you can change time and date.  Set your display options and use the <update> button to project the map.  When entering time, remember that your local time is 5 and 1/2 hours ahead of GMT, which is used as default in the program.

http://www.fourmilab.ch/cgi-bin/Yoursky

If light pollution is bad in your area, many constellations will be hard to see, especially those at an altitude below 45 degrees.  At that time of day, this time of year, you are looking at a relatively dark area of the sky.  Much better stuff to the north.  Earlier in the evening, Sagittarius should be nice from a dark observing site, but not if you are north of Hyderabad.  Try going straight south toward the sea.  The viewing should improve a lot.

Remember, the sun shifts with respect to the stars, a little bit every day.  You will be able to see most of the constellations of the southern hemisphere during the course of the year.

2) Hubble looks like a faint star moving slowly and steadily across the sky.  All satellites look like this, with varying speeds and brightness.  There is no trail coming from them.  Most satellites can be seen for several seconds to several minutes.  If it suddenly appears and moves very fast, it's a meteor, not a satellite.

Answer 3

http://www.stellarium.org/

This is the best freeware star chart that you can download.  This one is much easier to use for beginners.  Tell it where you are and it will tell you what you see.  

No, Satellites do not make a trail behind them.