Comet C/2021 A1 Leonard Position Charts

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JayTee United States of America
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Comet C/2021 A1 Leonard Position Charts

#1

Post by JayTee »


Here are two charts showing the next 2 weeks of Leonard's position. I used my two favorite planetarium programs to generate these charts, Sky Tech X (STX), and Cartes du Ciel (CdC). You'll notice that there is a slight difference between the two because calculating comet stuff is always an approximation because the numbers keep changing. I did a comet data update prior to generating these charts but you don't know how the author of each program generates his numbers.

Feel free to copy and print these charts. Anyway HYG.

Cheers
STX chart
STX Leonard A1.jpg
CdC chart
CdC Leonard A1.jpg
I would have also produced a Stellarium chart, but I forgot how to do this type of annotating in Stellarium.
∞ Primary Scopes: #1: Celestron CPC1100 #2: 8" f/7.5 Dob #3: CR150HD f/8 6" frac
∞ AP Scopes: #1: TPO 6" f/9 RC #2: ES 102 f/7 APO #3: ES 80mm f/6 APO
∞ G&G Scopes: #1: Meade 102mm f/7.8 #2: Bresser 102mm f/4.5
∞ Guide Scopes: 70 & 80mm fracs -- The El Cheapo Bros.
∞ Mounts: iOptron CEM70AG, SW EQ6, Celestron AVX, SLT & GT (Alt-Az), Meade DS2000
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messier 111 Canada
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Re: Comet C/2021 A1 Leonard Position Charts

#2

Post by messier 111 »


thx .
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Mounts , berno mack 3 with telepod , cg-4 motorized , eq6 pro belt drive .

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GCoyote United States of America
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Re: Comet C/2021 A1 Leonard Position Charts

#3

Post by GCoyote »


Thanks JT. I may try to catch this, if the cloud gods take a night off.
Any metaphor will tear if stretched over too much reality.
Gary C

Celestron Astro Master 130mm f5 Newtonian GEM
Meade 114-EQ-DH f7.9 Newtonian w/ manual GEM
Bushnell 90mm f13.9 Catadioptric
Gskyer 80mm f5 Alt/Az refractor
Jason 10x50 Binoculars
Celestron 7x50 Binoculars
Svbony 2.1x42 Binoculars
(And a bunch of stuff I'm still trying to fix or find parts for.)
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Re: Comet C/2021 A1 Leonard Position Charts

#4

Post by Graeme1858 »


Thanks JT

Definitely one to look out for!

Here's the Stellarium version:

Screenshot 2021-11-25 030156.png

Regards

Graeme
______________________________________________
Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
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Re: Comet C/2021 A1 Leonard Position Charts

#5

Post by GCoyote »


That is tempting. Just above the tree line for me.
Any metaphor will tear if stretched over too much reality.
Gary C

Celestron Astro Master 130mm f5 Newtonian GEM
Meade 114-EQ-DH f7.9 Newtonian w/ manual GEM
Bushnell 90mm f13.9 Catadioptric
Gskyer 80mm f5 Alt/Az refractor
Jason 10x50 Binoculars
Celestron 7x50 Binoculars
Svbony 2.1x42 Binoculars
(And a bunch of stuff I'm still trying to fix or find parts for.)
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Michael131313 Mexico
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Re: Comet C/2021 A1 Leonard Position Charts

#6

Post by Michael131313 »


Thanks Kaytee. I was just going to look this up today. You saved me some searching.
ES AR 102 102mm, f/6.5, ES 254mm f/5 DOB, Obie 10x50, GSO SV 30mm, ES 68° 20mm, ES 82° 14mm, 11mm, 8.8 mm, 6.8mm, 4.7mm. Twilight 1 mount.
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Re: Comet C/2021 A1 Leonard Position Charts

#7

Post by Michael131313 »


Opps Jay Tee. Fat fingers small screen. 😄
ES AR 102 102mm, f/6.5, ES 254mm f/5 DOB, Obie 10x50, GSO SV 30mm, ES 68° 20mm, ES 82° 14mm, 11mm, 8.8 mm, 6.8mm, 4.7mm. Twilight 1 mount.
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Re: Comet C/2021 A1 Leonard Position Charts

#8

Post by notFritzArgelander »


Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
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