Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
REVISION PENDING     We're sorry, but this object may not be revised at this time.
Log in to retrieve additional aliases from SIMBAD.
  TCP J21040470+4631129  
000-BND-892 (108691 observations)  
Cygnus Sequence
21 04 04.68 +46 31 14.5  (316.01950 +46.52069) Search nearby
B1950.0 21 02 19.91 +46 19 16.0
Galactic coord. 87.760 -0.235
Other names

(Internal only)
GSC2.3 N31X108363 Gaia19dfe IPHAS J210404.68+463114.0
PSN J21040470+4631129 PSO J210404.693+463113.906 UGPS J210404.68+463114.1
USNO-A2.0 1350-13375367 USNO-B1.0 1365-0394214  
(Not logged in)  Add name
Variability type
Spectral type --
Mag. range
8.4 - 18.1 V
Discoverer Hideo Nishimura
Outburst --
Period 0.05352 d  (77.07 min)
Rise/eclipse dur. --
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Schmeer, Patrick Swift/XRT detected a relatively bright X-ray source at the position of the dwarf nova, with an XRT count rate of 0.64 0.03 cts/s on 2019 July 13 (ATel #12947).
2 Schmeer, Patrick A spectrum obtained on 2019 Jul 12.9 UT is consistent with a large amplitude outburst of a cataclysmic variable (ATel #12936).
3 Schmeer, Patrick Inexplicably called "possible supernova" by the discoverer. No outbursts were recorded by the ASAS-SN Sky Patrol between 2015 March 20 and 2019 July 9. Gaia DR2 parallax 9.1337 0.1156 mas (distance 109.2 1.4 pc).
(Not logged in)  Add remark
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 V. Neustroev; D. Boyd; P. Berardi; et al., 2019, ATel #13009 2019ATel13009....1N
2 K. Sokolovsky; V. Neustroev; K. L. Page; et al., 2019, ATel #12947 2019ATel12947....1S
3 F. Teyssier, 2019, ATel #12936 2019ATel12936....1T
4 Gaia Alerts, 2019 (online data) --
5 T. Vanmunster, 2019, vsnet-alert #23388 --
6 CBAT "Transient Object Followup Reports", 2019 (online data) --
7 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0
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.
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
6 Schmeer, Patrick 2019-08-09 17:45 UTC Orbital period from 2019ATel13009....1N.
5 Schmeer, Patrick 2019-07-30 02:32 UTC Gaia Alerts name and reference added.
4 Schmeer, Patrick 2019-07-18 20:13 UTC Remark and reference added.
3 Schmeer, Patrick 2019-07-15 20:37 UTC Type from vsnet-alert 23388.
2 Otero, Sebastian Alberto 2019-07-13 19:50 UTC Maximum magnitude from AAVSO V data. Minimum magnitude derived from Pan-STARRS1.
1 Schmeer, Patrick 2019-07-12 16:24 UTC Gaia DR2 position. Minimum magnitude from IPHAS DR2.