He Wishes for the Clothes of Heaven
Had I the heaven's embroidered clothes,
Enwrought with golden and silver light,
The blue and the dim and the dark clothes
Of night and light and the half-light,
I would spread the cloths under your feet:
But I, being poor, have only my dreams;
I have spread my dreams under your feet;
Tread softly because you tread on my dreams.
William Butler Yeats |
| Observing Location | MO |
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| Observational Period | 2145-2315 EST |
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| Atmospheric Conditions |
| Cloud Cover | Clear |
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| Temperature | 45° - 43° F |
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| Wind | Light Breeze |
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| Humidity | Moderate |
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| Feels Like | Cold |
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It was cold but not umbearable. The wind was barely perceptible. There was some light boiling on the limb of the Moon.
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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 | 20071127.2145 EST |
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| Comments |
I stopped by PSC on the way up to MO to see if less ambient light would make a difference in my being able to see the comet but I couldn’t see it in the binocular from either location. I tried with SAR but didn’t detect anything there either.
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| Target | Moon |
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| Constellation | Gem |
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| Category | Lunar |
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Time
yyyymmdd.hhmm | 20071127.2210 EST |
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| Comments |
| Lunation | 1050 |
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| Phase | Waning Gibbous |
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| Age | 18d4h06m |
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Distance
Light Time
(from earth) | 369,403 km
1.23s |
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| Elongation | 131.4° W |
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| % Illuminated | 83.1% |
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| Morning Terminator Colongitude (λ E) | 131.3° |
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| Evening Terminator Colongitude (λ W) | 211.3° |
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| Libration in Latitude | -3°39’ |
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| Libration in Longitude | 8°03’ |
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| Magnitude | -11.6 |
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| Angular Size | 32'26" |
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| Altitude | 25.5° |
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|
Virtual Moon Atlas graphic |
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The Moon is on a line below Castor and Pollux and Mars is out to the right of Castor forming nearly a right triangle.
Virtual Moon Atlas graphic
| Terminator |
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| In Sunlight | Feature | In Shadow |
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| | Endymion | >>> |
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| <<< | Keldysh | |
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| <<< | Hercules | |
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| <<< | Atlas | |
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| | Chevallier | >>> |
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| <<< | Cepheus | |
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| <<< | Macrobius | |
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| | Tsserand | >>> |
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| <<< | Proclus | |
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| <<< | Cameron | |
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| <<< | Messier A | |
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| | Messier | >>> |
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| <<< | Goclenius | |
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| <<< | Belloit | >>> |
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| <<< | Colombo | |
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| <<< | Cook | |
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| <<< | Santbech | |
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| <<< | Borda | |
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| <<< | Reichenbach | |
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| <<< | Metius | |
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| <<< | Fabricius | |
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| <<< | Janssen | |
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| <<< | Steinheil | |
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| <<< | Watt | |
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| <<< | Vlacq | |
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| <<< | Rosenberger | |
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| <<< | Nearch | |
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| <<< | Hagucius | |
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| <<< | Boussigault | |
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| <<< | Boguslawsky | |
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Features identified:
- Dorsa Cato in Mare Fecunditatis
- Central peak in Reinhold
- Wisp of white from Madler extending to the east in Mare Nubium
- Ray from Messier A in Mare Fecunditatis
- Some structure inside Posidenous
- It looks like there are worm tunnels or tire tracks in the area of the Apollo 17 manding site, on the border between Mare Serenitatis and Mare Tranquilitatis
- It looks like there is a central peak in Plinius
- I can make out the top end of the Pyrenes mountains where they start south of Gutenberg and the lower end where they end near Dohnenberger, but not the middle portion
- Altai Scarp
- It looks like a bending ray from Tycho is tangent to Fracastorius and a weaker ray on the other side going down past Picolomini that give Fracastorius the appearance of a comet
- There is still one peak visible in Montes Cordillera up near Grimaldi
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While I had the scope pointed into Perseus I looked for some stars in the Alpha Perseus Association to try to get a handle on the TFoV of my 20mm lens.
Cartes du Ciel graphic
I wish there was a drag and drop feature in Cartes du Ciel. You can position something in the center of the screen, but it is hard to position it exactly anywhere else, so I can't get α Per to lie on the edge of the 2.3° eyepiece circle.
| Compared to α Per |
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| Star | Distance | Comment |
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| HIP 16340 | 2.0° | In FoV |
| ο Per | 2.2° | In FoV |
| HIP 16470 | 2.2° | In FoV |
| HIP 16570 | 2.4° | Out of FoV |
There is a peculiarity of SAR that is complicating the exercise. There is vignyetting in the upper right quadrant of the FoV caused by a misalignment of the coffee cans and mirrors that I can’t correct. Stars go dim or disappear before they reach the field stop in that area. That is where α Per was so it wasn’t too bad owing to its brightness.
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