11 August 2007

11 August 2007

Observing LocationHoS
Observational Period0930-0945 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature69°F
WindLight Breeze
HumidityModerate
Feels LikePerfect

Seeing isn’t that great, but transparency is perfect. Riding out on the subway I could see the control tower down at JFK Airport, which I have never seen before. There are low clouds behind it out over the ocean. But the view in the eyepiece is wavering more than it is steady.

TransparencyExcellent
SeeingIII
Instruments Canon 15x50 IS binocular w/Baader AstroSolar filter film - Charlie
Observing PartyCharlie Ridgway

I set my alarm for Moonrise at 0416 this morning so I could catch the last crescent of this lunation but when I looked out the window there was only one rent in the curtain of cloud so I tried to go back to sleep.

Target Sunspots
ConstellationLeo
CategorySolar
Time
yyyymmdd.hhmm
20070811.0930 EDT
Comments
Distance
Light Time
1.013543 AU
8ms
Angular Size31'36.7"
Altitude40.8°
Heliographic Latitude
(B0)
6.44°
Heliographic Longitude
(L0)
39.98°
Position Angle
(P)
14.65°
Carrington rotation number
(CR)
2059

The Sun entered Leo sometime overnight.

I can see one tiny spot

 Groups SpotsR
North0 0 0
South1 1 11
Total1 1 11
R = (Groups * 10) + Spots)

Group 966
Heliographic Latitude -10°
Heliographic Longitude 78°
Carrington rotation number
(CR)
2059
Mcintosh SystemAxx
This spot is small enough that it took a long time to find it since it kept fading out of focus.



Observing LocationSeamen’s Church Institute, Water St @ Peck Slip, New York, NY
Lat: 40° 42.502’
Long: 74° 0.142’
Observational Period2130-2145 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature73° F
WindCalm
HumidityModerate
Feels LikeVery comfortable

TransparencyGood
Seeing
InstrumentsNaked-eye Observing
Observing PartyCharlie Ridgway

TargetPerseids Meteors
Constellation
CategoryMeteors
Time
yyyymmdd.hhmm
20070811.2130 EDT
CommentsNot Seen
I was at the church for the monthly chanty sing and stepped outside onto the deck during the break to see if I could see any meteors. From a deck chair there I could see a stripe of sky about 25° wide by 90° long between the buildings. I was looking from zenith down to about 45° altitude from the NE through the SW. During that time I did not observe any meteors.



A work in progress

Observing LocationTotL
Observational Period2345-0330 EDT
Atmospheric Conditions
Cloud CoverClear
Temperature74°F – 71°F
WindCalm
HumidityHigh
Feels LikeA little cool

There were a few minor stripes of cloud that passed through from time to time but they didn’t affect observing at all. My gear was starting to get a little moist by the end of the session.

TransparencyExcellent
Seeing
Instruments Canon 15x50 IS binocular (hand held) - Charlie
10” Teleport Dobsonian reflector – Peter
  • 2" Pentax 40mm, 70° FoV, x
  • 1.25" TV Plossl 32mm, 50° FoV, x
  • 2" TV Nagler 17mm, 82° FoV, x
  • 1.25" TV Nagler 13mm, 82° FoV, x
Observing PartyCharlie Ridgway
Peter Tagatac
I attended the monthly sea chanty sing tonight and said that I might stop off at TotL on my way home since Peter had said that he would probably be there. I figured I would arrive around midnight and we would be leaving around 0100 EDT as usual.

Peter had read my notes from my 4Aug07 session and came with a list of my targets with the intention of using it for his observing program tonight. He said that he arrived around 1900 EDT and immediately drew a crowd of passers-by before he even got set up and it got dark. By midnight all he had gotten to observe was Jupiter with some transit activity and the Andromeda Galaxy which is what he was on when I arrived. Shortly after I arrived the last of the public left and we started looking north.

The police drove past around midnight and it was a couple of young male officers who waved but didn’t stop. We decided to try to push the envelope a bit since it wasn’t women officers and usually we don’t get threatened by the male officers if they bother us at all. We were not bothered the rest of the night and it was 0330 EDT before we finally left. Peter thought this was a record for us but I think we were there until 0430 EST one night when Ben was observing with us. It is definitely a record since the precinct got their new captain.

TargetM31, Andromeda Galazy, & M32
ConstellationAnd
CategoryDSO: Gal
Time
yyyymmdd.hhmm
20070811.2345 EDT
CommentsAndromeda is big and fairly bright. M32 is off to the side and looks like a small dust bunny. I thought there was another to be seen here but Peter says that we never see M102 from TotL. I was confused with a winter sky FoV that has three faint fuzzies in it that we have see in the 12.5” Dob at Columbia University.

TargetM34, NGC1039
ConstellationTri
CategoryDSO: Gal
Time
yyyymmdd.hhmm
20070812.0000 EDT
CommentsNot Seen
I remembered that there was another DSO on the opposite side of Andromeda and at roughly the same height above her feet as M31 and searched for it while Peter talked to one of the dog walkers. After I asked Peter about the object and he said it is a galaxy that we don’t see. That got us started looking for things in the north.

TargetM57, the Ring Nebula
ConstellationLyr
CategoryDSO: PlNeb
Time
yyyymmdd.hhmm
20070812 EDT
CommentsIt popped right out and really looked like a smoke ring tonight.

TargetNGC7789, Caroline’s Cluster
ConstellationCas
CategoryDSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsI located it at low power but needed higher poser to see individual stars.

Cartes du Ciel graphic

TargetKemble’s Cascade & NGC1502
ConstellationCam
CategoryAsterism & OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsNot as rich as the other night, but this is due in part to me hand holding the binocular.

TargetM52, NGC7654
ConstellationCas
CategoryDSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsA large, rich cluster. It looks to me like a carbon ring diagram with a chain coming off the upper right corner.

Cartes du Ciel graphic

TargetNGC752
ConstellationAnd
CategoryDSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsA large, rich cluster.

Cartes du Ciel graphic

TargetM34
ConstellationTri
CategoryDSO: Gal
Time
yyyymmdd.hhmm
20070811 EDT
Comments We looked at the galaxy in the scope and it appeared large and rich with about five levels of brightness.

TargetNGC6939
ConstellationCep
CategoryDSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsSmall and dense. It looks to me like it is attached to a sparser cluster that trails off to the upper right.

Cartes du Ciel graphic

TargetNGC6946
ConstellationCep
CategoryDSO: SpGal
Time
yyyymmdd.hhmm
20070812 EDT
CommentsNot Seen

Cartes du Ciel graphic

Look as they rise, rise
Over the line where sky meets earth
Pleiades!
Lo! They are ascending, come to guide us,
Leading us safely, keeping us one;
Pleiades!
Teach us to be, like you, united.

Traditional Pawnee

TargetMars & M45
ConstellationTau
CategoryClassical Planet & DSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsI saw five of the Pleiades. In a later count after the cluster rose a bit higher I counted seven.
Names for the Pleiades in Other Countries
CountryNative NameMeaning
Africa hen and chicks
ArabiaAth-thuravvathe crowd
Australian AboriginesMajars 
AztedTranquiztlithe marketplace
DenmarkAften Hoehenthe eve hen
England (medieval) the hen with chicks
Great Britan the seven sisters
Greece the hencoop
Greece (ancient) The Clusterers
IndiaKritkathe seven nurses of Karttikiya, the god of war
JapanSubaru 
Sunsruthe tortoise
Maori, New ZealandMataarkismall eyes
Navajo the flint boys
PawneeChakaa 
PersianSoraya 
SpainLas Cabrillasthe nanny goats
RussiaNasedhathe sitting hen

We also found as we were leaving that what we first thought was Aldeberan was really Mars

Object
Class
Classical Planet
Elongation°
Distance
Light Time
(from Earth)
AU
ms
Distance
(from Sun)
Au
Angular Size7.4"
Magnitude+0.4
Central Meridian 138.09°
Altitude16°
The Moon is nowhere in sight but I can still tell that Mars has a lot of growing to do if it is going to be as big as the Moon by the end of the month like the email says.

TargetFishook
ConstellationPer
CategoryAsterism
Time
yyyymmdd.hhmm
20070812 EDT
CommentsI could only see two stars.

Cartes du Ciel graphic

Cartes du Ciel graphic

TargetMesarthim, gamma&sub2; Ari & gamma&sub1; Ari
ConstellationAri
CategoryDouble Star
Time
yyyymmdd.hhmm
20070812 EDT
CommentsClose double, easily split. In the binocular it looks like a bigger star than it should be for its brightness but if I didn’t already know it was a double I wouldn’t think anything about it.

Cartes du Ciel graphic

TargetNGC1528
ConstellationPer
CategoryDSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsIt looks to me like a pen at the botton of a wavy piece of paper. Six bright stars in a warped box with an arc of stars curving away from the upper left corner.

Cartes du Ciel graphic

TargetGarnet Star, μ Cep
ConstellationCep
CategoryStar
Time
yyyymmdd.hhmm
20070812 EDT
CommentsVery bright, golden red. There is a triple about 1.5° away and a double about 1.25° away on that same line off to the right.

Cartes du Ciel graphic

TargetStock 23, Pazmino’s Cluster
Constellation
CategoryDSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsMedium size cluster of mostly bright stars.

TargetNGC1502
ConstellationCam
CategoryDSO: OCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsAn open cluster at the top of the bird’s foot (an asterism within an asterism) at the bottom of Kemble’s Cascade. It feels like there is a cloud around the faint stars that is more unresolved stars. The magnification was too much for me to make out the bird’s foot although it was all in the FoV. It was just too big and crowding the field stop. I like to have some breathing space around objects so I can see them in context.

Cartes du Ciel graphic

Cartes du Ciel graphic

TargetNGC1501
ConstellationCam
CategoryDSO: GCl
Time
yyyymmdd.hhmm
20070812 EDT
CommentsNot Seen

Cartes du Ciel graphic

TargetAldebeberan and the Hyades
ConstellationTau
CategoryStar and DSO: OCl
Time
yyyymmdd.hhmm
20070812.0315 EDT
CommentsThis time it is really Aldeberan and in the binocular I can see the Cyclops.
I saw one Perseid meteor just before 0100 EDT and possibly two more but one was way out to the side in my peripheral vision and the other was very faint so I can’t be sure of either of them.

Disclaimer
This is my personal record of my astronomical observations. It was written for my personal reference. The only reason it is in a blog is that a blog is a very convenient way to get the records formatted more or less uniformly and they will, hopefully, have greater longevity at Google where the servers are backed up than on my hard drive which never gets backed up. I occasionally include copyrighted material in my posts. I do this to make it convenient for me to access things I think I might want to refer to again. I think of this like making a photocopy of something I read that I put in a file where I can find it when I want it. As I understand copyright law, as explained in the DVD series Copyright Compliance by Chip Taylor Communications, this use is allowed under the Fair Use doctrine since I am not making any money on this blog, I don’t publicize the blog, and only occasionally post small excerpts of copyrighted works.


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