开云体育

-----Original Message-----
From: Matt Weeks <mweeks@...>
To: OAFs@... <OAFs@...>
Date: Friday, March 16, 2001 9:15 PM
Subject: [OAFs] Mar 15 Observing report




Hello all,

Thanks, Roland and Attilla for your warm welcome. I managed to get
out last night and do some observing, it was nice to get out after
such a bad stint of weather. I am looking forward to doing some
observing with you all, maybe I'll get to see what that 3x barlow can
do in experienced hands!! I have decided to revisit all of the
Messiers and log them along with the RASC's finest NGC objects. Up
until recently my observing records were check marks beside a list,
so I hope you don't mind reading about a million open clusters!!!

Anyway, here is my report:



Session: 01-007

Date: March 15, 2001
Time: 7:30 10:00
Location: Carp Airport, Carp Ontario
Weather Description: Winds: Light to Calm, Temp -6

Limiting Magnitude: 5.4 (Polaris) 5.75 (southern sky using triangle
method)
Seeing: 2/10 3/10
Scope: Celestar 8


Targets:

1) M47: Open cluster in Puppis. 40 50 stars visible using 42mm. A
coarse, large cluster. Most stars blue-white in color. A couple of
reddish stars were noted. Two obvious double stars noticed. One
pair were even brightness and closely matched in color (blue-
white). The other pair was uneven with a bright blue-white star and
a dim reddish star.

2) M46: Open cluster in Puppis. Using the 18mm and 24mm approx. 100
stars were noted. About half seemed to be "bright" and the other
half "dim". Moderately compressed and large. Planetary nebula NGC
2438 easily seen on northern edge of cluster with direst vision.
Averted vision made it a lot more obvious.

3) NGC 2438: Planetary Nebula in M46. 18mm + 2x barlow + Broad band
LPR. Slight hint of annularity glimpsed occasionally. Pretty much
round. Slightly brighter outer edge but overall very even brightness.

4) NGC 2539: Open cluster in Puppis. Using 18mm 35-40 stars were
noted. Moderately condensed. Nice view.

5) M50: Open Cluster in Monoceros. 50-75 stars in 42mm. Meandering
over approx. 3/4 deg. Loose cluster but bright and large. Noticed a
couple of reddish stars involved. Using 24mm lots more stars where
noted using averted vision. The background seemed slightly hazy.

6) M41: Open cluster in Canis Major. 40-50 stars in 42mm. Mostly
blue-white. One bright red star is center of cluster.

7) NGC 2359: Emission Nebula in Canis Major. Thor's Helmet. Using
18mm with LPR found a very faint patch of gas. Ovoid in N-S
direction. 7 stars involved with a small clustering on the north
edge. Using a digital Sky Survey image I believe what I saw was the
brighter "wing" of the neb. I will have to try this one again using
a UHC or darker sky.

8) NGC 3242: Planetary Nebula in Hydra. Ghost of Jupiter. Bright.
Easy in 18mm. Not quite round. Using 18mm + LPR a faint and thin
outer shell was noted. A possible slight extension of northern edge
of outer shell was suspected.


Clear skies all,

Matt Weeks





To unsubscribe from this group, send an email to:
amasot-unsubscribe@...



Your use of Yahoo! Groups is subject to