AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  Barlad V21  
AAVSO UID
000-BPS-785 (6 observations)  
Constellation
Cygnus Sequence
J2000.0
20 15 30.25 +38 31 21.2  (303.87604 +38.52256) Search nearby
B1950.0 20 13 40.68 +38 22 05.9
Galactic coord. 75.983 +1.964
Other names

(Internal only)
2MASS J20153025+3831212 GSC 03151-01743 HD 228597
TIC 11203259 TYC 3151-1743-1 UCAC4 643-091576
(Not logged in)  Add name
Variability type
DSCT
Spectral type A5Ve
Mag. range
11.49 V (0.02)TESS
Discoverer Ciprian Vintdevara, Alexandru Dumitriu - Barlad Astronomical Observatory
Epoch
13 Aug 2022 (HJD 2459805.12500) Ephemeris
Outburst --
Period 0.05641 d  (81.23 min)
Rise/eclipse dur. --
Remarks
There are currently no remarks on file for this star. (Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Zhang, Y. -J.; et al., 2022, A Catalog of Early-type Hα Emission-line
Stars and 62 Newly Confirmed Herbig Ae/Be Stars from LAMOST Data Release 7		 2022ApJS..259...38Z
2 Huang, C. X.; et al., 2020, Photometry of 10 Million Stars from the First
Two Years of TESS Full Frame Images: Part I		 2020RNAAS...4..204H
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 15 30.25 +38 31 21.2 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
Click document name to open or save. Browser plug-in or other software may be required for viewing.
1 Phase Plot Vintdevara, Ciprian 2023-11-06 10:31 UTC Phase plot with TESS and Barlad data
(Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
1 Vintdevara, Ciprian 2023-11-22 22:47 UTC Position and mean magnitude derived from Gaia DR3. Spectral type from 2022ApJS..259...38Z.

Guidelines    FAQ    Manual    Forum    Variability Types    Passbands    Copyright    Acknowledgments    Privacy    Contact    Help us   
The International Variable Star Index
© 2005-2025 American Association of Variable Star Observers (AAVSO)
Version 1.1 [C]
172.30.0.124