Deep sky object lists besides Messier catalog?

I just finished all the objects in the Messier catalog last weekend. Do you have any suggestion on the further deep sky object observation after this? Thanks.

There are many sources for observing programs on the net. Here are a few.

The herschel 400 comes to mind:

http://www.astroleague.org/al/obsclubs/herschel/h400lstn.html

These are other good lists:

http://www.astronomyboy.com/saa/saa100.html

http://pages.sbcglobal.net/raycash/dmcon.htm

This is a great resource, esp. steve gottliebs ngc data:

http://www.astronomy-mall.com/Adventures.In.Deep.Space/

--george

Depends on what level you are at.

Have you taken all the star hops in "Star Hopping for Backyard Astronomers?" (MacRobert?) and found everything in Turn Left at Orion?

Then maybe you need to go after the Herschel 400, the SAC collection, or specialize in some type of object. Maybe begin splitting doubles.

One of my favorite things to do is "Find all the Globulars on Page 22 of Sky Atlas 2000." Or "All the galaxies over 10th magnitude in Virgo."

Alex

You may want to try the Saguaro Astronomy Club's list of 110 objects - http://www.saguaroastro.org/content/BEST-OF-DEEP-SKY-OBJECTS-NOT-IN-THE-NGC.htm

The TAAS 200 - http://www.taas.org/taas200/index.html - is aimed at intermediate observers who live in southern US latitudes.

Vic Menard's list of 400 objects is quite good.

http://homepage.mac.com/vicmenard/telescopes/TheList.pdf

Dave Mitsky

Here are lists of 1000 and 2000 DSOs respectively:

http://www.subdomainname.yurisnight.net/messier/xtra/similar/m1000.txt

http://www.1000plus.com/2000plus/

Dave Mitsky

Weihua,...Have you tried Skyhound.com? It gives a month by month observing list. Also has some challenge objects and some favorite objects. When in the site just pick..."In the eyepiece" and also check the Deep Sky Archive list for all months. Also gives some of the comets that are visible. Gerry

You may also want to have a look at my DSO lists at the end of my monthly AstroCalendar:

http://dvaa.org/AData/AD2008_06.html

Dave Mitsky