Stars not recognised by AVSpec Search

American Association of Variable Star Observers (AAVSO)
Fri, 01/06/2023 - 22:23

Hello, fellow spectroscopists,

When searching on the AVSpec page, I noticed that the following stars result in a "Star not recognized” error message when I query them in

37 Eri

37 Lib

4 Sgr

7 Psc

83 Vir

chi Cap

eps Aqr

eps CMa 

eta Boo

HD 107328

HD 140283

HR 220

HR 4125

HR 4451    

HR 6066 

HR 6449

J Pup

ksi01 Sgr

ksi02 CMa 

tet Vir 

Why is it so?


British Astronomical Association, Variable Star Section (BAA-VSS)
Hi Ari,

The AAVSO database…

Hi Ari,

The AAVSO database is only for  variable stars (ie those which vary in brightness) catalogued in VSX

Not sure how stars which may only be spectroscopically variable are handled though (eg eta Boo is a spectroscopic binary) 

You could try the BAA database which includes all objects but unless the stars are interesting for some reason there will probably not be any spectra there

I see some of these, eg eta Boo have spectra in the ELODIE archive though



American Association of Variable Star Observers (AAVSO)
My mistake...

Hi, Robin,

Actually, I was searching in the wrong place: instead of looking for information on these stars in an external database, I was using the search feature within AVSpec. Because most of the “standard AVSpec stars” are non-variables, the search results were telling me those stars are not recognized. These "standard AVSpec stars" are to be used in the initial procedure for a newcomer to submit observations to the AVSpec database (

Your suggestion for me to search in the BAA database will be followed, thank you. And in the ELODIE archive too.

Thank you.