Search found 20 matches

by Alun Halsey
Fri Aug 30, 2019 6:38 pm
Forum: Spectra, results, information on activity ...
Topic: A few Be stars
Replies: 2
Views: 3950

Re: A few Be stars

Hi Robin,

Thank you,yes I did attend the workshop,very enjoyable and informative session. Much easier to get on with ISIS now that I had a few points clarified thanks to David Boyd :)

Regards
Alun
by Alun Halsey
Wed Aug 28, 2019 6:51 pm
Forum: Spectra, results, information on activity ...
Topic: A few Be stars
Replies: 2
Views: 3950

A few Be stars

Hello, Having finally got to grips with using ISIS I had a go at a few Be stars over the past weekend. Using a C9.25 with LHires III with 2400 grating and 35 micron slit and ATIK 314L for acquisition camera all riding on an Ioptron CEM60 I had a go at HD 193009,HD 197419,Lam Cyg and QR Vul. All four...
by Alun Halsey
Fri May 04, 2018 1:02 pm
Forum: Beginners corner
Topic: AG Dra in ISIS
Replies: 5
Views: 4918

Re: AG Dra in ISIS

Hi Olivier,

Thank you for the spreadsheet,will make good use of that.

HD 155763 will be a much better choice being a lot brighter at magnitude 3 compared to magnitude 8 for the star I'd chosen so,again, thank you for the tip.

Best Regards
Alun
by Alun Halsey
Fri May 04, 2018 9:26 am
Forum: Beginners corner
Topic: AG Dra in ISIS
Replies: 5
Views: 4918

Re: AG Dra in ISIS

Hi Francois,

Thank you,looking at Cartes Du Ciel map I have found an A3 star reasonably near to AG Dra (HD143933) so next clear session I get I will use it as my reference
star.

Best Regards
Alun
by Alun Halsey
Thu May 03, 2018 9:23 am
Forum: Beginners corner
Topic: AG Dra in ISIS
Replies: 5
Views: 4918

AG Dra in ISIS

Hi Here are the results of my attempts at AG Dra and calibrating using ISIS (still on learning curve with the software). Using my C9.25 @f6.3 and ALPY 600 with 23um slit and 314L I captured first set of 4x300sec on the night of the 23rd April and again another set of 3x300sec last night,used the cal...
by Alun Halsey
Sat Mar 31, 2018 10:04 am
Forum: General Topics, Annoucements, Forum Life
Topic: Unable to download ObsC2A.txt
Replies: 5
Views: 5659

Re: Unable to download ObsC2A.txt

Hi Ken, No worries in the name spelling :) Glad you have the problem sorted, I am running version 4.0-3575. I have the Arasbeam folder placed in my Documents and have the main program folder for Cartes installed in my Downloads folder rather than the program files folder and not running as administr...
by Alun Halsey
Fri Mar 30, 2018 9:18 pm
Forum: General Topics, Annoucements, Forum Life
Topic: Unable to download ObsC2A.txt
Replies: 5
Views: 5659

Re: Unable to download ObsC2A.txt

Hi Ken,

Attempted an update of the catalog today and it seemed to work okay with no sign of any hangups.

Best Regards

Alun
by Alun Halsey
Wed Feb 28, 2018 5:37 pm
Forum: Spectra, results, information on activity ...
Topic: First posting: Kappa Draconis
Replies: 3
Views: 4474

Re: First posting: Kappa Draconis

Hi Robin, Thank you for the advice. I use the internal lamp of the Lhires III to take my flats,could be possible I didn't take them correctly (too short an exposure). I used the 15um slit as Kappa Dra was the last target of the night after I'd earlier been concentrating on 28 Tau. I use mainly use B...
by Alun Halsey
Sun Feb 18, 2018 11:12 pm
Forum: Spectra, results, information on activity ...
Topic: First posting: Kappa Draconis
Replies: 3
Views: 4474

First posting: Kappa Draconis

Hi, First time posting on this forum, back on night of 15/02/18 I had a go at Kappa Dra using my C9.25 and Lhires III with 15um slit,camera is Atik 314L. Captured four 120sec images which were stacked,dark,flat and flat dark subtracted in BASS. Calibrated using three neon lines of Lhires calibration...
by Alun Halsey
Sat Jan 20, 2018 11:36 pm
Forum: Introduction / Présentation
Topic: Hello from Reading Berkshire.
Replies: 1
Views: 2729

Hello from Reading Berkshire.

Hi, I live in Reading Berkshire in the UK. I became interested in astronomy back in 1969 at the age of nine when Apollo 11 landed on the Moon. Left school and started working as a postman and due to shift work the hobby took a back seat for 20 years but got back into the hobby in August 1999. Main i...