| Observing Location | MO |
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| Observational Period | 2030-2200 EST |
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| Atmospheric Conditions |
| Cloud Cover | Clear |
|---|
| Temperature | 38° - 32° F |
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| Wind | Light Breeze
gusting to
Moderate Breeze |
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| Humidity | Moderate |
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| Feels Like | Cold;
Wind Chill 27° - 24° F |
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It was cold, but since I had put on the woollies and my parka it didn’t feel all that bad – except for my feet.
The air seemed a lot more stable tonight than last night. I did not detect any thin clouds but had trouble seeing 17P/Holmes. I don’t know how much of that is the effect of the nearly full Moon and how much is the comet fading.
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| Instruments | Golden Gate 7x35 binocular - Charlie
SAR: Coulter CT-100 Newtonian reflector - Charlie
- Celestron Omni 20mm (21x)
- Celestron Omni 2x Barlow
|
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| Observing Party | Charlie Ridgway
|
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| Target | 17P/Holmes |
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| Constellation | Per |
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| Category | Comet |
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Time
yyyymmdd.hhmm | 20071123.2100 EST
2007 Nov 24.08 UT |
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| Comments |
I have my comet comparison star list and spreadsheet but can’t see the comet well enough to use them. I couldn’t find it at all in the binocular and missed it at first in the scope but then it came faintly into view as my eye dark adapted. Going back to the binocular I found it knowing right where to look. I thought it was right near HIP 15420 and Planetarium confirmed that.
| Power | FoV | Count | Diameter |
|---|
| 21.6x | 2.3° | 3.1 | 0.74°
44.52’
44’31” |
| 43.2x | ~1° | | |
| Average | |
|---|
This is larger than others are assessing its size, but in line with what I saw last night.
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|
| Target | Moon |
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| Constellation | Ari |
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| Category | Lunar |
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Time
yyyymmdd.hhmm | 20071123.2115 EST |
|---|
| Comments |
| Lunation | 1050 |
|---|
| Phase | Waxing Gibbous
Full -12h15m |
|---|
| Age | 14d3h11m |
|---|
Distance
Light Time
(from earth) | 352,282km
1.17s |
|---|
| Elongation | 171.2° E |
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| % Illuminated | 99.6% |
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| Morning Terminator Colongitude (λ E) | 83.3° |
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| Evening Terminator Colongitude (λ W) | 262.3° |
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| Libration in Latitude | -6°04’ |
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| Libration in Longitude | +0°40’ |
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| Magnitude | -12.7 |
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| Angular Size | 32.92' |
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| Altitude | 60°49’ |
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Virtual Moon Atlas graphic |
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The western limb of the Moon looks lumpy from around Hevelius down to around Boguslawsky, especially around Mare Orientale where I can definitely see the outside of the rim in profile. The Montes Cordillera look very nice with some “plateau” and a pass between them, and shadow below them and on the rounded edges.
Field Map of the Moon graphic
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I noticed yesterday that the template I use as the basis for these posts was still saying we were in Daylight Saving Time. I have corrected the template so the times should be correct from now until we switch times again on 9Mar08. I also went back through the blog and think I have corrected all the time references between 4Nov07 and today. the numbers were right, as were any UT times that were listed, it just said EDT when it should have said EST.
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