30 January 2007

28 January 2007

Observing LocationPSC
Observational Period1015-1045 EST
Atmospheric Conditions
Cloud CoverBroken
>50%
Temperature38°F
WindGentle Breeze
HumidityModerate
Feels LikeMild

I had been seeing sunlight on the buildings adjoining mine so didn't think about checking cloud conditions before heading out. When I got downstairs I found puddles on the pavement from overnight rain that I had not been aware of. Still I didn't think to look up since I was headed for my observing location where that is what I planned to do. When I got to the location and did look up I found the sky to the SE was overcast. I spent the first 15 minutes of the observing session trying to find the Sun with the telescope. There were times when I couldn't even find it naked-eye. Right at the end of the session a stripe of very thin cloud passed in front of the Sun and I got a fairly good look at the sunspot. Only getting fleeting glances of the Sun made it hard to do the mental gymnastics necessary to match the sub up to the view in Hel,which, so far as I know, can't be mirror reversed.

TransparencyPoor
SeeingV
InstrumentsSAR: Coulter CT-100 Newtonian reflector - Charlie
  • Celestron Omni 20mm
  • Celestron Omni 2x Barlow
  • Baader AstroSolar filter film
Observing PartyCharlie Ridgway

Target Sunspots
ConstellationCap
CategorySolar
Time
yyyymmdd.hhmm		20070128.1000 EST
Comments
Distance
Light Time		0.985AU
8m11s
Angular Size32'29"
Heliographic Latitude
(B0)		 -5.74°
Heliographic Longitude
(L0)		 95.350°
Position Angle
(P)		 -10.59°
Carrington rotation number
(CR)		2052

I could are one large spot in what I believe was the southern hemisphere but conditions did not permit observing it long enough to detect any smaller spots that might be around it or the presence or absence of penumbra.

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

Group 940
Heliographic Latitude -12°
Heliographic Longitude 49°
Carrington rotation number
(CR)		2052
Mcintosh System
The spot appears to be large and is farther into the disk than I was anticipating it.

posted by Charlie at 11:59

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.


Disclosure
This blog is a personal blog written and edited by me. This blog does not accept any form of advertising, sponsorship, or paid insertions. We write for our own purposes. However, we may be influenced by our background, occupation, religion, political affiliation or experience.

The owner(s) of this blog will never receive compensation in any way from this blog.

The owner(s) of this blog is not compensated to provide opinion on products, services, websites and various other topics. The views and opinions expressed on this blog are purely the blog owners. If we claim or appear to be experts on a certain topic or product or service area, we will only endorse products or services that we believe, based on our expertise, are worthy of such endorsement. Any product claim, statistic, quote or other representation about a product or service should be verified with the manufacturer or provider.

This blog does not contain any content which might present a conflict of interest.