12 Skywatcher Collapsible Dobsonian (coming soon, two more days, be here Tuesday)
Celestron C102 HD " Carl"
Scope brand 60mmx 700mm " widger scope"
Celestron Comet catcher(orange tube)"Scott"
60mm Telescope Club
Quote:I just read that Comet C/2011 L4 (PANSTARRS) will be brightest in the March evening sky perhaps 2nd magnitude or better?With that only being three or so months away, is it visible now in a small telescope or binoculars????
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Quote:Oort Cloud comets like 2011 L4 carry within them a high potential for not living up to expectations with regard to their brightness predictions.
Quote:Analysis is based on 155 visual observations.
Televue 85/TRF-2008 field flattener, Meade LX200 10", Manfrotto 055SSB tripod/410 geared head/AstroTrac TT320X-AG/056 3D head, GM-8/Gemini, 10 Micron 1000 HPS, Canon 40D (unmodded), Canon 450D (modded w/Astronomiks clip-ins - UV/IR, OWB), Coronado SM60/Lunt B1200/WO diagonal, Baader Herschel Wedge Leeds Sky Clock Ripon Sky Clock
Quote:... to Comet Kohoutek some forty years ago
Quote:A revised brightness formula prepared by Seiichi Yoshida from recent magnitude measurements of the comet now puts peak brightness at +3http://www.aerith.net/comet/catalog/2011L4/2011L4.htmlSeiichi puts n now at 2.4 with m1 set at 5.5 meaning the comet is less intrinsically bright than orginally thought and brightening slower than hoped. This is a drop from the prior estimate using n = 4.0 and m1 = 4.0. CN Experts - is this typical with Oort comets? (still learning my way round)
Quote:and do not know why
Such comets are often very unpredictable, and do not know why, they usually get worse!
Quote:Hi, any news from last days? Is there even any chance for this comet to be visible with tail in 10x50? I mean from northern hemisphere.
Quote:Quote:Hi, any news from last days? Is there even any chance for this comet to be visible with tail in 10x50? I mean from northern hemisphere.
The most recent observation that I am aware of is this one:
2013 Jan 24.74 UT; m1=7.2; Dia= 5’; DC= 6; 11x70 B [Chris Wyatt, Walcha, NSW,
Twilight, tail to WSW, fan shaped WSW to ESE, tail more defined on the NW edge,
5’ in length on the longest side (WSW), ESE edge much shorter. Bright stellar
pseudo nucleus with diffuse and fainter outer coma.
The comet's current magnitude implies a continuation of the reduced rate of brightening exhibited since its recovery several weeks ago. Considering that currently a rudimentary dust tail is evident visually, this suggests that a more prominent example of such a feature will evolve as the comet approaches the Sun.
However, when theoretically near its brightest and best during March the comet will be situated very low in the western sky and backed by rather bright twilight for Northern Hemisphere observers. While this initially did not seem likely to pose a serious problem when the comet's peak magnitude was anticipated to be zero, or brighter, it is increasingly likely that twilight will indeed be a major factor, along with light from the waxing moon, in this likely fainter comet's visibility.
I know that Comet C/2006 P1 (McNaught) was brighter before perihelion than PANSTARRS will probably ever be, but I needed 10x50 binoculars to get a good view of it just above the horizon when I made this sketch just 2 days before perihelion. Through the binoculars it looked like a magnesium flare. Of course, it then went on to greatness.
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A man is a small thing, and the night is very large and full of wonders.
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Quote:It's now Feb. the Moon is slowly going away I'm waiting for another obs.
Quote:Its been a while since a mag +2 comet anyway so I wont sniff at that.
Quote:Hey, the comet is now making nice gas tail. What does it mean for us?
Quote:What magnitude was hale-Bopp or hyakutake??Pete
Quote:What magnitude was hale-Bopp or hyakutake?