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
  IRAS 19400+3415  
AAVSO UID
000-BMK-903 (No observations)  
Constellation
Cygnus Sequence
J2000.0
19 41 54.06 +34 22 26.8  (295.47523 +34.37412) Search nearby
B1950.0 19 40 01.58 +34 15 19.4
Galactic coord. 68.908 +5.567
Other names

(Internal only)
2MASS J19415405+3422269 GSC2.3 N2GT361539 SDSS J194154.05+342226.8
USNO-B1.0 1243-0346197 ZTF J194154.05+342226.7  
(Not logged in)  Add name
Variability type
M
Spectral type --
Mag. range
19.950 (2.297) r
Discoverer Trygve Prestgard
Epoch
21 Jan 2019 (HJD 2458505.156) Ephemeris
Outburst --
Period 480 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. r-band period= 738.2752341 d.
2 Prestgard, Trygve Position from 2MASS. Maximum magnitude from GSC2.3. Minimum magnitude derived from the limiting magnitude of the DSS POSS-E Red plate. J= 9.35; J-K= 2.61 (2MASS).
(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
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 = 9.35H = 7.87K = 6.74J - K = 2.60
AllWISE W1 = 5.93W2 = 4.83W3 = 2.49W4 = 1.22W1 - W2 = 1.09W3 - W4 = 1.27
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
Click document name to open or save. Browser plug-in or other software may be required for viewing.
1 Discovery images Prestgard, Trygve 2017-09-14 20:25 UTC Object first noticed in AllWISE. Variability confirmed by SDSS, Pan-STARRS1 and DSS Red images.
(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 04:40 UTC Update from 2020arXiv200508662C. Gaia EDR3 position.
1 Prestgard, Trygve 2017-09-15 03:46 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]
172.30.3.32