Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/show_object.php on line 1

Warning: Cannot modify header information - headers already sent by (output started at /home/yivumoo/public_html/show_object.php:1) in /home/yivumoo/public_html/show_object.php on line 3

Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/index_lookup.php on line 1

Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/astrocalc.php on line 1

Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/monthnames.php on line 1
DOCdb - IC 1737

Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_build_banner.php on line 1

sponsored by psychohistorian.org

DOCdb

Deep Sky Observer's Companion – the online database

 

Welcome, guest!

If you've already registered, please log in,

or register an observer profile for added functionality.


Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_build_menu.php on line 1

Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_build_browse_showobject.php on line 1

List:

log in to manage your observing lists

 browse:

 

 position:

 

 next:

 

 options:

summary

rename

prune

trim

remove

close

copy

combine

plan

bookmark

load

new

delete

marathon

favourite!

Full database:

Entire DOCdb database of 18,816 objects.

 browse:

 position:

IC 1737 (1,335 of 18,816)

 next:

oc gc pln bn dn gx gxcl ast aka lost

Object:

list

bookmark

finder chart

altitude today

altitude (year)

 search:

½°, , in DOCdb


Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_browse_flag.php on line 1

show browsing

IC 1737

IC 1737

RA: 01h 51m 42.4s
Dec: +36° 15′ 1″

Con: Andromeda
Ch: MSA:123, U2:92, SA:4

Ref: Corwin (2004), NED

(reference key)

Type: stars (two)

Mag: B=?, V=?

Size: ?
PA: ?

History and Accurate Positions for the NGC/IC Objects (Corwin 2004)

IC 1737 is only two stars. Bigourdan's place falls south of the brighter, western of the pair. He measured it only one night in 1891 (his two measurements on that night disagree by over 10 arcsec), but claimed to have recovered it on another night in 1903.

In spite of the agreement with his description, the galaxy (with 3 stars close west) 7 arcmin to the south -- which I had chosen in the early 70s as I1737 -- is almost certainly not his object. He used the same comparison star to measure NGC 687 on the same two nights he saw this; his position for N687 is within an arcsecond of the modern value. This makes a 7 arcmin Dec error highly unlikely, and the RA is also three seconds off.

Malcolm caught this one, too. He has sharp eyes, thank goodness!


Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_right_bookmarks.php on line 1

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

The Bennett objects

The Caldwell list

Named DSOs


Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_right_object_search.php on line 1

Object search

First search phrase

    and

Second search phrase

Type of object to include:

open cluster
globular cluster
planetary nebula
bright nebula
dark nebula
galaxy
galaxy cluster
asterism & stars
unverified/lost
nova


Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_right_help.php on line 1

The Bug Report

DOCdb is still in beta-release.

Known issues, feature requests, and updates on bug fixes, are here:

> Bug Report

Feedback

Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!

> Contact us

Help!

DOCdb is a free online resource that exists to promote deep sky observing.

You could help by sharing your observations, writing an article, digitizing and proof-reading historical material, and more.

> Find out more


Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_bottom_maincontent.php on line 1

Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_bottom_copyright.php on line 1

Everything on DOCdb.net is © 2004-2010 by Auke Slotegraaf, unless stated otherwise or if you can prove you have divine permission to use it. Before using material published here, please consult the Creative Commons Attribution-Non-Commercial-Share Alike 2.5 License. Some material on DOCdb is copyright the individual authors. If in doubt, don't reproduce. And that goes for having children, too. Please note that the recommended browser for DOCdb is Firefox 3.x. You may also get good results with K-Meleon. Good luck if you're using IE. A successful experience with other browsers, including Opera and Safari, may vary.