AstroSketches |
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73p-b-vega24 views2006-05-09 22:46:00 73P-B Schwassmann-Wachmann 3 Frg. B 9x63 Meade Travelview Binoculars 5.8° field of view 9 About as bright as M13, nucleus seen as well as fanned tail. Only 3-4 stars of Corona Borealis visible with unaided eye, and saw stars near Vega down to about magnitude 8 in binoculars. The comet was easily found in the same field of view as Vega by looking for the prominent (in binoculars) triangle of stars, HIP92098 (mag. 6.03), HIP91674 (mag. 6.62) and the binocular double Epsilon Lyrae (mag. 4.65 and 4.56). The comet was just outside the triangle, just below (ESE) the midpoint of the base defined by HIP92098 and Epsilon Lyrae. At 22:53, a faint (mag. 7 or so) satellite crossed the field of view, entering at 1o'clock and exiting at 8o'clock, passing just south of HIP91674. At 22:57 a brighter satellite (mag. 5 or so) crossed the field of view, entering at 9o'clock and exiting at 4o'clock. (lines aren't drawn that accurately. I did not specifically witness it passing through or close to any stars other than the one mentioned.) Neither was listed on www.heavens-above.com, but Starry Night's latest update listed the brighter as Cosmos 1833 rocket booster, mag. 2.16. Haze went in and out of the field of view, making the comet seem to brighten and fade.
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73p-b31 views2006-05-07 00:49:00 73P-B Schwassmann-Wachmann 3 Frg. B 9x63 Meade Travelview Binoculars 5.8° field of view 9 Moon was waxing crescent roughly westward. Fainter than main/C fragments. Roughly curved triangular nebulosity, fatter at the head and fanning out less—closer to teardrop than main/C was. Found by pointing binoculars toward Pi, Rho, and 69 Herculis, then moving rightward a binocular field to include the triangle of binocular-bright stars HIP84949 (mag. 5.53), HIP85888 (mag. 5.71), and HIP8568
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73p-b220 views2006-05-12 01:57:00 73P-B Schwassmann-Wachmann 3 Frg. B 9x63 Meade Travelview Binoculars 5.8° field of view 9 Milky way, though not visible to unaided eye, was just visible in binoculars. In binoculars, stars visible to almost mag. 9. With unaided eye, stars visible to about 4.5 in area of Deneb and Vega (nearly-full moonglow washed out area of Albireo at the other end of Cygnus). Comet was brighter than before (mag. 6.3 according to Starry Night).
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73p-c15 views2006-05-07 00:30:00 73P-C Schwassmann-Wachmann 3 Frg. C 9x63 Meade Travelview Binoculars 5.8° field of view 9 Could not tell if it was a tail and bright nucleus or a comet and a star (HIP90781, mag. 7.34). Moon was waxing crescent roughly westward. Beautiful faint gossamer nebulosity, roughly triangular. Easily found by pointing binoculars toward Vega, putting Vega and Zeta Lyrae in the field, and moving a binocular field rightward along the perpendicular bisector of Vega—Zeta Lyrae, and then down
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alberio15 views2006-06-06 23:54:00 Albireo Beta Cygni Celestron C6-R 150mm f/8 refractor with 9x50 5.8° field of view finder 60 Bright yellow star with dimmer blue-green companion. Other stars in field appeared white.
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albireo-binoculars25 views2006-07-23 23:20:00 Albireo Beta Cygni 15x70 Celestron SkyMaster Binoculars 4.4° field of view 15 Double star just resolvable by binoculars, visible separation between bright orange primary and dim green secondary. Sky was particularly good for south Bowie, Sagitta and Delphinus, as well as two stars of Vulpecula visible.
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belt19 views2006-09-10 03:20:00 Collinder 70 Belt of Orion 15x70 Celestron SkyMaster Binoculars 4.4° field of view 15 Moon was waning gibbous in nearby Pisces, making the sky appear deep blue. There was haze, as evidenced by a halo around the moon. Andromeda Galaxy, near the zenith, was visible in binoculars, but was not very large. It was a cool night. The belt was hard to see tonight—one star was visible and a second star faded in and out. The third was invisible to the naked eye.
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c1424 views
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coathanger-binoculars27 views2006-05-17 00:30:00 Collinder 399 the Coathanger 9x63 Meade Travelview Binoculars 5.8° field of view 9 Could see stars down to Lambda (mag. 4.40) in Serpens Caput with the naked eye. 7 main stars of Cygnus visible, but I could not see Vulpecula or Sagitta. Found by aiming binoculars at Altair, then moving toward Vega, passing Sagitta, and stopping at the prominent coathanger shape. Not a true cluster, but a chance alignment of stars. The bright stars are 1 (top, mag. 4.75) and 9 (bottom, mag. 5.0) Vulpeculae.
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collinder399-313 views
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collinder39914 views
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coma17 views
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