MASCARA Variable star catalogue

This page website hosts the MASCARA variable star catalogue. This contains new variable star candidates and known variable stars. For some of the known variables, new parameters (periods, amplitudes) were determined with MASCARA.

New variable star candidates are listed on this page.
A table detailing known variables recovered with MASCARA can be found here. This includes those variables that did not previously have parameters noted in the VSX database.
Feel free to use this data in further work, but please remember to cite our publication: DOI 10.1051/0004-6361/201833142

Downloads

Name	Download link	Length	Description	Columns
New variables	New variables	282	New variable star candidates found with MASCARA.	See table below.
Known variables (new)	Known variables (new)	210	Known variable stars recovered with MASCARA. Only those that did not previously have parameters listed in VSX.	See here.
Known variables (all)	Known variables (all)	2986	Known variable stars recovered with MASCARA. Includes those that did not previously have parameters listed in VSX.
All variables	All variables	3268	All variable stars found with MASCARA. Includes new and known variables.

New variables

Please note that these still need to be vetted with further observations before they can be confirmed as variables.

Explanation of columns:

ColumnName	Units	Description	Note
ASCC		ASCC-2.5 number	Stars are numbered from 1 to 2501977 (as in the first version in agreement with the file order indicated in the File Summary) and from 2600001 to 2603318 (new stars in the 2nd version). This is a hyperlink to that object's light curve and periodogram.
HD		HD number	These link to the object's page on SIMBAD. Derived from ASCC.
HIP		Hipparcos number
TYC		TYC number from Tycho-2
Vtype		Type of variability	Determined visually based on the light curve. "P" is pulsating (e.g. RR Lyr, del Cep), "E" is eclipsing.
Vmag	mag	V magnitude in Johnson system	From ASCC.
Bmag	mag	B magnitude in Johnson system
BminV	mag	B-V magnitude
Spectype		Spectral type
RA	deg	Right Ascension	epoch J2000
Dec	deg	Declination	epoch J2000
Data		Number of flux data
P	days	Period
P_err	days	Period error	3 sigma; "--" if no 3 sigma error could be determined.
Amp	mmag	Amplitude
Epoch	HJD-2 450 000	Epoch	Epoch of a minimum in brightness.