|
|
|
 Revise  New Search
|
|
Latest Details
|
|
|
Log in to retrieve additional aliases from SIMBAD. |
|
|
| Name |
X Del |
|
|
| AAVSO UID |
|
| Constellation |
|
| J2000.0 |
|
| B1950.0 |
20 52 35.71 +17 27 00.9 |
| Proper motion |
| RA: 9.4 +/- 2.6 mas/y | Dec: -2.8 +/- 2.5 mas/y | Source: UCAC4 |
|
| Galactic coord. |
63.991 -17.273 |
Other names
(Internal only)
|
|
Please note that aliases shown in grey link to obsolete records.
|
|
AAVSO 2050+17 |
ASAS J205454+1738.6 |
ASASSN-V J205454.16+173830.2 |
|
BD+17 4452 |
HD 199170 |
IRC +20492 |
|
ZTF J205454.13+173829.9 |
|
|
(Not logged in) Add name
|
| Variability type |
|
M |
|
|
| Spectral type |
M4e-M6e |
| Mag. range |
|
7.98 - 14.8 V |
|
|
| Discoverer |
T.D. Anderson, 1895 |
| Epoch |
|
| Outburst |
-- |
| Period |
282 d |
| Rise/eclipse dur. |
42% (118 d) |
|
|
|
|
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 |
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 |
Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties |
2018A&A...616A...1G |
|
4 |
G.Pojmanski, Acta Astronomica 52, 397, 2002. |
2002AcA....52..397P |
|
5 |
T. Karlsson, Maxima of Mira stars |
-- |
|
6 |
General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al. |
-- |
|
|
|
|
|
|
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 = 4.60 | H = 3.65 | K = 3.13 | J - K = 1.47 |
|
AllWISE
|
W1 = 3.08 | W3 = 1.57 | W4 = 1.07 | W3 - W4 = 0.50 |
|
APASS-DR9
|
B = 12.03 | V = 10.72 | g' = 11.46 | r' = 9.67 | i' = 6.64 | B - V = 1.31 |
|
GALEX-DR5
|
NUV = 21.54 |
|
|
|
|
Images
|
|
|
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
|
|
|
|
|
Campaigns/Programs
|
|
|
|
|
LPV Program
|
|
|
|
Revision History
|
|
|
Currently approved revision is checked. Click revision number to view details of that revision.
|
|
|
|
|
