NGC 1502 - The cluster at the end of Kemble's Cascade
- pakarinen
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NGC 1502 - The cluster at the end of Kemble's Cascade
Entered coords from SS, so I expected this to be center field. Not sure if I made an entry error if SLOOH was off a tad. This one I've viewed visually at home with my fracs.
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
The centering problem might be related to J2000 vs. Jnow. That is roughly the magnitude of offset you would expect from that. Coordinates from an atlas or database will be J2000. Actual coordinates in the sky are always Jnow. Coordinates from software could be either.
Nice cluster, regardless!
Nice cluster, regardless!
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
Exactly so.... on both counts.KathyNS wrote: ↑Sat Sep 11, 2021 11:18 pm The centering problem might be related to J2000 vs. Jnow. That is roughly the magnitude of offset you would expect from that. Coordinates from an atlas or database will be J2000. Actual coordinates in the sky are always Jnow. Coordinates from software could be either.
Nice cluster, regardless!
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
Unfortunate they did not include the cascade.
Kemble 1/NGC 1502 is one of my favorites
Kemble 1/
Gabrielle
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See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
Yeah, I'll check J2000 vs Jnow to center and also see if I can nudge theLady Fraktor wrote: ↑Sun Sep 12, 2021 2:58 am Unfortunate they did not include the cascade.
Kemble 1/ NGC 1502 is one of my favorites
Addendum: I checked the coords I entered and I had used J2021.7 from SkySafari. The J2000 from
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I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
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AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
Well now, well now... I tried NGC 1502 again using the same scopes - Canary 2 Wide Field and Ultra Wide Field - but coords from the DSS SIMBAD coord finder.
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I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
I have seen that often, especially with Canary One, the objects often are low in the fields.
I also sometimes make mistakes when I enter coordinates, ex. 45.5 minutes I put in as 45 minutes 30 seconds not sure if that is right
I also sometimes make mistakes when I enter coordinates, ex. 45.5 minutes I put in as 45 minutes 30 seconds not sure if that is right
I might not always be right but I am never wrong, once I thought I was wrong, but I was mistaken...
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"Sometimes having is not so pleasing as wanting, it's not logical but it is true"
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
30 arcseconds is half of an arcminute, so 0.5 would be correct. I'm usingBen Cartwright SASS wrote: ↑Thu Sep 16, 2021 12:42 pm I have seen that often, especially with Canary One, the objects often are low in the fields.
https://archive.stsci.edu/cgi-bin/dss_form
Enter the object name, hit "GET COORDINATES", and the coords show below on the
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I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
I drink tea, I read books, I look at stars when I'm not cursing clouds. It's what I do.
=============================================================================
AT50, AT72EDII, ST80, ST102; Scopetech Zero, AZ-GTi, AZ Pronto; Innorel RT90C, Oberwerk 5000; Orion Giantview 15x70s, Vortex 8x42s, Navy surplus 7x50s, Nikon 10x50s
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Re: NGC 1502 - The cluster at the end of Kemble's Cascade
I can't use that for many of the objects I am trying to image for the Planetary Nebula program at the Astronomical League
Objects like
J320
Jonckheere 900
M1-7
JnEr1
etc
Objects like
J320
Jonckheere 900
M1-7
JnEr1
etc
I might not always be right but I am never wrong, once I thought I was wrong, but I was mistaken...
Ferengi Rule of Acquisition #59
Free advice is seldom cheap
"Sometimes having is not so pleasing as wanting, it's not logical but it is true"
Commander Spock
Canon DSLR's R7, R6II, 5D, 7D2, 90D 21 lenses incl. 100-400L mk ii, 70-200L mk iii f/2.8, RF600/11
Lunt LS50 DS, LS80 DS, Lunt 102ED, Stellarvue SV80 APO, Orion ST80, 127 MAK, Skywatcher Evostar 120ED, 102 MAK, Celestron 8" Edge HD, 102AZ
Skywatcher EQ6-R Pro
ZWO ASI071MC-cool, ASI174mm, ASI174mm-cool, ASI178MC-cool, ASI290 mini, ASI120MM-S, ASI120MC Revolution Player One mm (178 chip)
Ferengi Rule of Acquisition #59
Free advice is seldom cheap
"Sometimes having is not so pleasing as wanting, it's not logical but it is true"
Commander Spock
Canon DSLR's R7, R6II, 5D, 7D2, 90D 21 lenses incl. 100-400L mk ii, 70-200L mk iii f/2.8, RF600/11
Lunt LS50 DS, LS80 DS, Lunt 102ED, Stellarvue SV80 APO, Orion ST80, 127 MAK, Skywatcher Evostar 120ED, 102 MAK, Celestron 8" Edge HD, 102AZ
Skywatcher EQ6-R Pro
ZWO ASI071MC-cool, ASI174mm, ASI174mm-cool, ASI178MC-cool, ASI290 mini, ASI120MM-S, ASI120MC Revolution Player One mm (178 chip)
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