spectro-aras.com

Here is my M87 spectrum with the slit through the central region.
https://britastro.org/observations/obse ... c6d134b3dc
Only the centre of the galaxy shows H alpha so to see it, you do need to put the slit centrally on the galaxy

Cheers
Robin

An animation showing the evolution over the past week. (The temperature is dropping and the flash ionisation phase He lines have gone) Cheers
Robin

Hi all, Yes, I've listed (and update) the necessary keys on this page : https://alphadra.staros-projects.org/knowledge-base/start/how This is a start but it is not sufficient to define the header precisely. See the BeSS standard document for an example of how the header should be specified The BeSS...

The next update will offer greater flexibility. For example, BESS_ESPR will be optional. Please note, however, that it is primarily up to the software designers to ensure that the data produced is as compatible as possible with the analysis applications (BESS, STAROS, ...), and not the other way ro...

JD_OBS is also not part of the BeSS standard and so is not defined. Only DATE_OBS is required in the BeSS standard so STAROS should be generating it from that if it is required. I recommend contacting the STAROS team and asking them what standard they are using and why they are not using the BeSS st...

Hi Erik, STAROS should not be asking for BSS_ITRP if BSS_ESRP is present BSS_ESRP is the resolution measured in the actual spectrum BSS_ITRP is the resolution given in the instrument description (which is added by BeSS if BSS_ESRP is not present) From the definitions in the BeSS fits standard docume...

A low resolution (ALPY600) spectrum last night (poor conditions, high cloud, twilight 20230521_sn2023ixf_guider.png gives a good SNID match to SN 1998S (type IIn) sn2023ixf_20230521_SNIDfit.png downloadable from the BAA database https://britastro.org/specdb/data_graph.php?obs_id=13774 It could be br...

Mike Harlow has posted an objective prism spectrum on his BAA page
https://britastro.org/observations/obse ... p?id=70986

Cheers
Robin

It is now mag 12 and still rising. No amateur spectra yet? I am surprised. (Only clouds for me since discovery)

Robin

A type II supernovae SN2023ixf has been discovered tonight in M101 at mag 14.9
https://www.wis-tns.org/object/2023ixf