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Comparative study of M42

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16 years 2 months ago #62355 by jeyjey
Replied by jeyjey on topic Re: Comparative study of M42
Declan --

Yep, the invert is done after I scan it in on the computer.

I also usually have to do a bit of touch-up in Photoshop to repair the damage the scanner does (you can still just make out a speckled vertical stripe to the right of M15 that didn't get cleaned up).

-- Jeff.

Nikon 18x70s / UA Millennium                              Colorado:
Solarscope SF70 / TV Pronto / AP400QMD             Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO               Tak Mewlon 250 / AP600EGTO

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16 years 2 months ago #62359 by pj30something
Replied by pj30something on topic Re: Comparative study of M42
Jeff that 3rd pic of M42.....thats focused in on the Trap,right?

Paul C
My next scope is going to be a Vixen VMC200L Catadioptric OTA

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16 years 2 months ago #62368 by Seanie_Morris
Replied by Seanie_Morris on topic Re: Comparative study of M42
Really getting into the swing of things with those sketches Jeff, nice to see and study them too. Cracking work!

Seanie.

Midlands Astronomy Club.
Radio Presenter (Midlands 103), Space Enthusiast, Astronomy Outreach Co-ordinator.
Former IFAS Chairperson and Secretary.

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16 years 2 months ago #62375 by jeyjey
Replied by jeyjey on topic Re: Comparative study of M42
Paul --

They're a bit hard to compare because the rotation is different on the second and third images. In the second sketch, the Trap is just below center; in the third sketch it's to the right of center, about half-way to the field stop.

I forgot to mark it, but N is about 8 o'clock in the second image. The second and third images are also mirror-reversed left-to-right since they were done through an SCT.

Cheers,
-- Jeff.

Nikon 18x70s / UA Millennium                              Colorado:
Solarscope SF70 / TV Pronto / AP400QMD             Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO               Tak Mewlon 250 / AP600EGTO

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16 years 2 months ago #62376 by jeyjey
Replied by jeyjey on topic Re: Comparative study of M42
Thanks, Seanie!

I've certainly enjoyed doing them (and as Declan mentioned, you really do see a lot more when you sketch).

-- Jeff.

Nikon 18x70s / UA Millennium                              Colorado:
Solarscope SF70 / TV Pronto / AP400QMD             Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-125 / AP1200GTO               Tak Mewlon 250 / AP600EGTO

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16 years 2 months ago #62378 by TrevorDurity
Replied by TrevorDurity on topic Re: Comparative study of M42
Great sketches Jeff. That M15 in particular is really superb.
I tried this stuff a bit last winter after seeing Deirdre's stuff and could not get the hang of it at all.
You got me tempted to try again...

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