Search found 377 matches

by umasscrew39
Mon Nov 30, 2020 8:58 pm
Forum: Gallery
Topic: M42, M43 and NGC1977, the bubble (again)
Replies: 2
Views: 386

Re: M42, M43 and NGC1977, the bubble (again)

These are both very beautiful images, Tim. Congratulations but keep the wife happy so you can keep buying new telescope toys. :)

Bruce
by umasscrew39
Mon Nov 30, 2020 11:42 am
Forum: General Discussions
Topic: No one uses recommended exposure length?
Replies: 2
Views: 154

Re: No one uses recommended exposure length?

Hi Gary I agree that most, including myself, have fallen victim to using longer exposure times than are required. That, like Robin stated, does lead to saturated stars at times, all looking white and sometimes bloated. The star shapes are also affected by oversampling or undersampling, depending on ...
by umasscrew39
Mon Nov 30, 2020 11:28 am
Forum: Gallery
Topic: An Oldie but Goodie: NGC7635 The Bubble Nebula
Replies: 6
Views: 261

Re: An Oldie but Goodie: NGC7635 The Bubble Nebula

Hi Tim Agree- the Bubble N is an amazing object. Would like to see your image from the Newt when you are done. The 249MC is a great camera. I had it for a long time before switching to the 2600MC. The broadband UHC LP filter will indeed give a different look of the Bubble N which is also very intere...
by umasscrew39
Sun Nov 29, 2020 12:13 am
Forum: Gallery
Topic: An Oldie but Goodie: NGC7635 The Bubble Nebula
Replies: 6
Views: 261

Re: An Oldie but Goodie: NGC7635 The Bubble Nebula

Well- there better not be more in it or the filter doesn't work and/or the nebula has changed. It is a dominate Ha structure (thus the red dominance) with very little OIII in it unlike other structures like the Veil Nebula. If you look carefully at it, the white wispy lines on the bubble itself are ...
by umasscrew39
Sat Nov 28, 2020 6:48 pm
Forum: Gallery
Topic: M1 The Crab Nebula (180 sec f/7 unguided)
Replies: 6
Views: 430

Re: M1 The Crab Nebula (180 sec f/7 unguided)

Excellent, Menno! The Crab is always a crowd pleaser.

Bruce
by umasscrew39
Sat Nov 28, 2020 6:47 pm
Forum: Gallery
Topic: An Oldie but Goodie: NGC7635 The Bubble Nebula
Replies: 6
Views: 261

An Oldie but Goodie: NGC7635 The Bubble Nebula

One of the most peculiar emission nebulae and a fan favorite, the Bubble Nebula never ceases to amaze. This bright HII structure in the constellation Cassiopeia with its bubble created by the stellar wind from a massive hot, 8.7 magnitude young central star. The nebula is near a giant molecular clou...
by umasscrew39
Fri Nov 27, 2020 8:04 pm
Forum: ZWO Cameras
Topic: ZWO ASI294MM Pro SDK Update
Replies: 29
Views: 1817

Re: ZWO ASI294MM Pro SDK Update

According to ZWO, the new bin 1 is operating in HGC so there is no noticeable drop-off in read noise like with the old bin 1 setting. They recommend using 120 gain and 30 offset in either setting. I just downloaded the new SDK so hope to try it soon and compare it to the old bin 1 that I have been u...
by umasscrew39
Wed Nov 25, 2020 2:10 pm
Forum: ZWO Cameras
Topic: ZWO ASI294MM Pro SDK Update
Replies: 29
Views: 1817

Re: ZWO ASI294MM Pro SDK Update

Further update from ZWO on bin settings............ bin1 2.3um 12bit ADC bin2 sensor bin2 4.6um 14bit ADC bin3 software bin3 2.3um 12bit ADC bin4 sensor bin2 + software bin2 4.6um 14bit ADC Essentially, bin 2 was the only option available when the camera became available. ------------------------- I...
by umasscrew39
Tue Nov 24, 2020 8:14 pm
Forum: ZWO Cameras
Topic: ZWO ASI294MM Pro SDK Update
Replies: 29
Views: 1817

Re: ZWO ASI294MM Pro SDK Update

HI Robin

Good reminder- I have been using this camera with the 64 bit version of SharpCap and it works perfectly.

Bruce
by umasscrew39
Tue Nov 24, 2020 4:15 pm
Forum: ZWO Cameras
Topic: ZWO ASI294MM Pro SDK Update
Replies: 29
Views: 1817

ZWO ASI294MM Pro SDK Update

For those who have or are planning to purchase the new ASI294mm Pro, ZWO released an updated SDK yesterday to unlock the binning at the request of many users. Now you can use it at 2.31 um pixel size (x1 bin) in addition to the 4.63 um pixel size (now the default x2 bin) when it was initially releas...