Instrumentation and Equipment

This may be of interest. While he hasn't yet fixed all the small issues in getting VPhot ready images from a SeeStar, he seems to have solved at least some, like scheduling multiple objects over the coarse of an evening!

Peter

BPEC

https://calendar.google.com/calendar/u/0/share?slt=1AaoAQDYE4G6XPbFSnEpRwZy-_iescMnkcaadNUSjqWagKrrcDzUlx-2FKYurq0EXmYXM_5GTBScxqnJJttk9dz8C-KwwJPrrxn1zWeJ7dwOyGU0e0OYcDKEZ

Hello!

I just fished a homemade 10" dobsonian out of a pile of trash at the side of the road. It appears from the paper taped onto it to have been made in the 80s. The mirrors seem to be perfectly fine, so I'm super excited to have found this. I have been back and forth in my interest in doing astronomy for years now - first got into it during the epsilon Aurigae campaign way back when. I've never had a telescope, though I did do some binocular visual observations back then. 

So I finally managed to do some meaningful reduction of images taken with the ZWO Seestar S50. As a target I picked T CrB, it's currently at ca 10 mag V and this is a sweet spot for the S50 I guess: not too bright, not too faint. And needless to say, there is an ongoing campaign to observe this recurring nova which is expected to do its next episode of kaboom! any time now.

My Brother and I are planing to move his Celestron Edge C-14 to NM for remote observing. He has quite a few NEOs and a comet (hug-bell) to his credit and I’m a complete newby looking to get involved in observing variables. 

I’m tasked with the hardware and a wondering if someone would review this image train before I pull the trigger on purchase. This will be primarily used for photometry.  

Item                                                                 Backfocus in mm

Edge C-14

Focal reducer 0.7

Hello, 

I'd like to come back to variable star observing but I'm unable to set up an observation site.

Apparently there are people using services like Itelescope to gather images to analyze.

I was wondering if this is a viable option to get scientific valid data.

I've been an variable star observer for a number of years but have only ever done visual observing.  I’ve never had that much interest in astrophotography or EAA but as I’ve been reading some accounts on here and in other places of people doing really interesting variable star photometry with the new breed of smart telescopes I’ve decided this this is something I’d really like to get into myself.

I read somewhere that there is a problem with CMOS camera photometry at exposures less than about a second.

I wanted to check if this is true and why please.

Kevin

I'm an AAVSO newcomer and newbie in photometry. I want to buy  36 mm V and B filters for my  optic system (Celestron 11"/STT-8300 camera). I have read CCDPhotmetric guide and I have doubts about the selection: Sloan or Johnson, Chroma or Baader? Could you recommend? Thanks,

Luis

Oviedo, Spain

This is a thread for experienced veterans.

I just found these old cameras forgotten in some drawers when moving an astronomy club to a new address: Celestron PIXCEL 255, SBIG CCDH-1, SBIG ST-7, and StarLight MX7c.

Hello All, 

I'm going to enter into this world, finally after a while. I have to select a camera to start doing my first steps into photometry (I'm reading the AAVSO guides/manuals).

options are:

- KAF 8300 (full well 25Ke, 16 bit, cooled)

- IMX533 (full well 50ke, 14bit, cooled)

- IMX432 (full well 97ke, 12bit, uncooled)