[Prev][Next][Index][Thread][Search][Objects]

(IAAC) OBJECTS: NGC 4490, NGC 4485 INST: 18" f/4.2 Newt. LM=5.0 Rating: B/B-



Observer:  Todd Gross
Your skill:  Intermediate - Many years
Date and UT of observation: 2/15/99 09:13 GMT
Location & latitude: 22 mi. West of Boston, Ma. 42.3N
Site classification: Suburban
Limiting magnitude (visual): 5.0 (measured) zenith 
Seeing (1 to 10 - worst-best): about 5
Moon up (phase?): No
Weather: Clear
Instrument: 18" Stabilite Newt f/4.2 1925mm fl
Magnifications: 71x,128x,193x
Filters used: none
Object: NGC4490, NGC 4485 
Constellation: CVn 
Object data: Galaxy (pair)
Size(s): 6.3x3.1 / Approx. 3x1 on ngc4485
Position: RA12:31 DEC41:38n
Magnitude: 9.8
Personal "rating" (at this aperture, and sky condition):  B/B-
This is an interesting "pair" of galaxies. I have listed the data for
the Cocoon galaxy, ngc 4490 primarily above. The two are almost at 
right angles to each other... I'd say about 80 degrees between them. NGC 
4485 lies not far off the end of 4490, forming an upside down L in the 
eyepiece.  
Larger 4490 was a plump elongated galaxy, somewhat football shaped,
with a brighter elongated core. The core did not look 100% parallel 
with the axis of the galaxy. Nice because of the pairing. Best at medium
power on up.
thanks! 
-Todd
Boston Meteorologist Todd Gross
toddg@weatherman.com
http://www.weatherman.com
(617)725-0777
To UNSUBSCRIBE from the 'netastrocatalog' lists, use the Web form at:
http://www.visualdeepsky.org/subscribe.html