spectro-aras.com

I have used this excellent resource for many years to plan my observations of new transients and view the target field and details in SIMBAD. The author is a professional astronomer and responsive to suggestions of additions/improvements.

Cheers
Robin

A paper including observations during this continuing campaign has been published today
"The birth of Be star disks I. From localized ejection to circularization"
https://arxiv.org/abs/2504.07571

Cheers
Robin

And yet another prediction ATel using my high resolution H alpha spectrum from the ARAS database. (I have no connection with the authors)
https://www.astronomerstelegram.org/?read=17041
"T CrB on the Verge of an Outburst"
I think they should have at least added a question mark ;-)

Cheers
Robin

Double left click either end of the region of interest

Hi Paul,

I don't know the cause but It seems to me that it is not a stitching problem but a problem with the individual orders which show flip ups at the edges. The stitching is trying its best to fit to include those edge effects. A problem with the blaze profile in those regions ?

Cheers
Robin

Joan Guarro Flo wrote: Mon Dec 09, 2024 1:23 pm Hello,

Seconds Gary Cole found making a test with a HD204827 star observation, The Giver works well.

You can see the results here.

Cheers, Joan.

A great result after a hard project
Congratulations !

Cheers
Robin

James,

I can't see your images either.


I have seen this kind of problem before. I think it is a browser security setting that prevents displaying images hosted elsewhere on a non secure (ie not https) site. For example this is the address of one of the images
http://astroimage.info/files/Vega ...

HD180482 (22 Aql) is another suspect spectrum in the Melchiors database


melchiorshd180482_THO_Pickles.png


Black is the spectrum in Melchiors,
Blue is the expected spectrum based on the spectral classification and IS extinction
Red is my measurement using a mean of 3 different reference stars ...

Very Interesting. Dr Heloise Stevance gave a talk at a BAA meeting this weekend on her work to develop a "Virtual Assistant" to initially classify transients from the ATLAS survey instruments. I have been confirming and classifying transients spectroscopically for many years, including some detected ...

The spectrum of HD205021B (BD+69 1173B/bet Cep B) in the Melchiors library is not correct. It is either of the wrong star or is heavily contaminated by bet Cep, 13 arcsec away. (It also shows data reduction ripple artifacts)
https://set-p-stweb.bm.icts.kuleuven.be/quicklook/893741_A1V_BD+691173B.png ...