Here is the OR I owed you guys/gals. Continued my Abell Planetary
survey.
Alvin
Location: Fiddletown
Date: 03-05-05
Observer: Alvin Huey
Telescope: 22" f/4.1 equipped with a Paracorr
Eyepieces: 35mm Panoptic, 17mm Type 6 Nagler, 13mm Type 1 Nagler, 9mm
Type 1 Nagler.
Filters: Lumicon O-III and UHC filters.
Transparency started at 6/10 and ended at 4/10
Seeing: started at 5/10 ended at 4/10
Abell 20 - 22" f/4.1 (203 and 293x) - Considerably faint round even
surface brightness smudge. Estimated size is about 60" across. Central
star seen without O-III filter, but the nebula is still visible.
Abell 22 - 22" f/4.1 (155 and 203x) - Faint elongated patch. It
appeared slightly mottled with bright spots north and SW of the center.
The SW piece is about twice as large as the N piece.
Abel 15 - 22" f/4.1 (155, 203 and 293x) - This small, round faint
planetary showed even surface brightness throughout. Estimated size is
about 30" across. The central star was seen without the filter.
Abell 24 - 22" f/4.1 (75 and 155x) - Faint elongated smudge with a
slightly mottled surface. The bright pieces were on the west and east
sides with the eastern side being a tiny bit brighter. Central star was
not attempted.
Arp 82 (NGC 2535) - 22" f/4.1 (203 and 293x) - Elongated spiral with
obvious barred spiral arms. Arms are evenly bright throughout, no
mottling. Arms goes around clockwise going outwards. NGC 2536 is a
very small elliptical with a very condensed nucleus, almost stellar and
lying about 75" SSE of NGC 2535.
Arp 287 (NGC 2735) - 22" f/4.1 ( 203 and 293x) - NGC 2735 shows a 3:1
elongated considerably bright patch with a brighter center. Its position
angle is 90 degrees. Estimated size is about 60 x 20". It's neighbor,
NGC 2735A is a very small considerably bright round disk with lying
about 60" due east from NGC 2735. Apprarently Megastar has an error, it
was plotted to the west versus east. A group of 4 7th to 9th magnitude
stars lies south of the pair.
Arp 247 (IC 2338) - 22" f/4.1 ( 203 and 293x) - IC 2338 is a 3:1
elongated even surface brightness and considerably bright patch. It is
about 30x10" across with a PA of 45. IC 2339 is a small round
considerably bright disk lying about 90" SW of IC 2338 with a 15th
magnitude star between it. IC 2341 lies about 8' almost due north of
the pair. This is a very bright elongated (2:1) elliptical galaxy with
a significantly brighter round nucleus. Estimated size is about 75 x
40". PA = 0 degrees.
Location: IHOP
Date: 03-12-05
Observer: Alvin Huey
Telescope: 22" f/4.1 equipped with a Paracorr
Eyepieces: 35mm Panoptic, 17mm Type 6 Nagler, 13mm Type 1 Nagler, 9mm
Type 1 Nagler
Filters: Lumicon O-III and UHC filters.
Transparency started at 7/10 and ended as 6/10.
Seeing varied from 6/10 at the beginning to 5/10 as the night wore on
especially to the east.
Abell 19 - 22" f/4.1 (155 and 203x) - Considerably faint planetary
nebula shows a round even surface brightness disk. A 12.4 magnitude
star was located in the center, but it is not the central star. A 13.6
magnitude star lies 2' south.
Abell 21 - 22" f/4.1 (75 and 155x) - When I was scanning for it in low
power, I found it immediately as a bright crescent shaped nebulous
object. Studying this nebula more, little filamentary structure was
seen with bright spots on the south and north ends of the crescent. The
south piece is a little brighter than the north end. A 12.1 magnitude
star lies immediately west of the bright north part. Many stars are
embedded in the nebula. The east portion seemed to have a very faint
extension almost all the way out to the 10.9 magnitude star lying about
10' SWW from the "center". Estimated size is about 12' across from end
to end. The western piece was not seen at all.
Abell 14 - 22" f/4.1 (203x) - This is a very faint and elongated smudge
with an aspect ration of about 2 to 1. It's 40 x 20" surface is even
throughout. It's 15th magnitude central star was spotted in the center.
This nebula was spotted on my third attempt!
Abell 27 - 22" f/4.1 (155 and 203x) - This Abell planetary is very
faint, small and slightly elongated. Its surface brightness is even
throughout. Only seen with averted vision. I could not locate a
central star in the center, but its published central star is seen at
the NNW end of the fuzzy spot.
Abell 30 - 22" f/4.1 (155 and 203x) - This considerably faint planetary
is round. Its 120" disk is even brightness throughout. The 14th
magnitude central star is located at the center.
Abell 31 - 22" f/4.1 (75x) - This large planetary is bright and round.
Showed a slightly irregular surface brightness generally brighter
towards the center. The brightest parts lies about 2' to the south and
east. The southern piece is a little brighter than the east, but the
eastern piece is about twice as large. This nebula is bracketed by a
group of five 10 and 11th magnitude stars with many fainter stars
embedded
Abell 28 - 22" f/4.1 (155 and 203x) - This planetary is very faint and
large. It appears just a brightening of the background sky with a
generally round shape. No other features were seen and tough.
Abell 33 - 22" f/4.1 (203 and 293x) - Bright round disk with a
noticeably brighter western side. A 7.2 magnitude star dominates the
western side. The 15.5 magnitude central star was barely seen with the
O-III filter. Taking the filter off renders the nebula almost
invisible, but the central star pops out.
Abell 34 - 22" f/4.1 (75, 155 and 203x) - The bright spot on the west
edge was seen without any filters and with a filter, it seemed to
disappear. I'm guessing it might be a galaxy. The actual nebula was
not seen (3-12-05)
Received on Mon Apr 11 21:22:36 2005