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
  NSVS 8504923  
AAVSO UID
000-BLW-437 (No observations)  
Constellation
Cygnus Sequence
J2000.0
20 25 03.70 +37 13 40.7  (306.26542 +37.22798) Search nearby
B1950.0 20 23 10.91 +37 03 51.2
Galactic coord. 75.985 -0.323
Other names

(Internal only)
2MASS J20250369+3713406 IPHAS J202503.70+371340.6 IRAS 20231+3703
MSX6C G075.9845-00.3230 NSVS 5733838 URAT1 637-438258
USNO-B1.0 1272-0511162 ZTF J202503.71+371340.6  
(Not logged in)  Add name
Variability type
M
Spectral type S6/2
Mag. range
16.906 (2.789) r
Discoverer Ivan Sergey,Sebastian Otero, Dubrovski Sergei, Astrobloknot Team
Epoch
20 May 2018 (HJD 2458258.895) Ephemeris
Outburst --
Period 390 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 2020arXiv200508662C Epoch of minimum given. g-band period= 391.5233630 d. r-band period= 444.8899607 d.
2 Sergey, Ivan J-K= 2.33. NSVS magnitudes contaminated by GSC 02697-00556 V= 12.0 (sep. 19"). Range has been corrected.
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 ZTF Catalog of Periodic Variable Stars (online data) 2020arXiv200508662C
2 Chen, X.; et al., 2020, The Zwicky Transient Facility Catalog of Periodic
Variable Stars		 2020arXiv200508662C
3 Northern Sky Variability Survey, Wozniak, P.R., et al., 2004 2004AJ....127.2436W
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.
Catalog Data
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
2MASS J = 6.83H = 5.33K = 4.50J - K = 2.33
AllWISE W1 = 4.02W2 = 3.61W3 = 3.00W4 = 2.32W1 - W2 = 0.41W3 - W4 = 0.68
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 20 25 03.70 +37 13 40.7 (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 Sergey, Ivan 2016-02-26 16:30 UTC
(Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Otero, Sebastian Alberto 2021-10-26 01:05 UTC Update from 2020arXiv200508662C. Gaia EDR3 position.
1 Sergey, Ivan 2016-02-26 21:17 UTC Initial submission.

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]
172.30.0.175