|
|
|
 Revise  New Search
|
|
Latest Details
|
|
|
Log in to retrieve additional aliases from SIMBAD. |
|
|
| Name |
DQ Her |
|
|
| AAVSO UID |
|
| Constellation |
|
| J2000.0 |
|
| B1950.0 |
18 06 05.31 +45 51 02.0 |
| Proper motion |
| RA: 5.3 +/- 5.0 mas/y | Dec: 16.7 +/- 5.1 mas/y | Source: UCAC4 |
|
| Galactic coord. |
73.153 +26.444 |
Other names
(Internal only)
|
|
Please note that aliases shown in grey link to obsolete records.
|
|
1SWASP J180730.28+455131.9 |
2MASS J18073024+4551325 |
2RXP J180730.0+455136 |
|
AAVSO 1804+45 |
AN 452.1934 |
ASASSN-V J180730.27+455132.5 |
|
CDS 959 |
Downes DQ Her |
GCRV 10587 |
|
Gaia DR2 2116226254706461568 |
Gaia DR3 2116226254706461568 |
Nova Her 1934 |
|
PLX 4164 |
SBC7 665 |
SBC9 1029 |
|
TIC 332624864 |
UCAC3 120981849 |
UCAC4 680-061811 |
|
WEB 15046 |
WISE J180730.26+455132.6 |
WISEA J180730.25+455132.5 |
|
X 18061+458 |
|
|
(Not logged in) Add name
|
| Variability type |
|
NB/DQ+E |
|
|
| Spectral type |
WD+M3Ve |
| Mag. range |
|
1.3 - 17.6 V |
|
|
| Discoverer |
J. P. M. Prentice |
| Epoch |
|
| Outburst |
1934 |
| Period |
0.1936209154 d (4.64690197 h) |
| Rise/eclipse dur. |
-- |
|
|
|
|
Remarks
|
|
|
Some references may be clicked to view in new window. Roll over index number to view submission details.
|
|
|
|
1 |
GCVS Team |
VB A (B 18.17m, F, 3.5", 132deg, optical?). Nebula, R = 10.5" (Halpha, 1981). After the main Max of the Nova a deep Min 13.0m (JD2426925) and a flat secondary Max 6.7m (JD2427065) were observed. Eclipsing variability: 14.61m - 18.08m, Min HeI = 2434954.9445 + 0.193620877d*E [J.E.Pringle, MN 170, 633, 1975.]. D = 0.20P, d = 0.000P. The light curve shape and Delta(M) var. Oscillations: Max HeI = JED2434954.785868 + 8.22521640d*10**(-4)*E - 2.8048d*10**(-16)*E**2 [J.Patterson, E.L.Robinson, R.E. Nather, ApJ 224, 570, 1978.], 0 <= Delta(m) <= 0.08m. Polarization changes with double oscilation period. Flickering: Delta(m) = 0.15m. |
|
|
|
|
(Not logged in) Add remark
|
|
|
|
References
|
|
|
Click reference title/citation to view in new window. Roll over index number to view submission details.
|
|
|
|
1 |
Poyner, G., 2024, CV & E News |
-- |
|
2 |
Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties |
2018A&A...616A...1G |
|
3 |
Light curve from CRTS/CSS (Drake et al. 2009, ApJ, 696, 870) |
2009ApJ...696..870D |
|
4 |
Z.B. Dai, S.B. Qian, 2009, A&A 503, 883 |
2009A&A...503..883D |
|
5 |
R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) |
2005JAD....11....2D |
|
6 |
R.A. Downes et al., 2001, PASP 113, 764 |
2001PASP..113..764D |
|
|
|
|
|
|
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 = 13.60 | H = 13.28 | K = 13.09 | J - K = 0.52 |
|
AllWISE
|
W1 = 13.00 | W2 = 12.85 | W3 = 12.32 | W1 - W2 = 0.15 |
|
APASS-DR9
|
B = 14.61 | V = 14.44 | g' = 14.45 | r' = 14.35 | i' = 14.45 | B - V = 0.16 |
|
GALEX-DR5
|
FUV = 16.65 | NUV = 16.30 | FUV - NUV = 0.35 |
|
|
|
|
Images
|
|
|
Please review Digitized Sky Survey Acknowledgment and Copyright.
|
|
|
|
|
|
|
|
Supporting Documents
|
|
|
|
|
There are currently no supporting documents on file for this star.
|
(Not logged in) Add document
|
|
|
|
|
Campaigns/Programs
|
|
|
|
|
Legacy CVs
|
|
|
|
Revision History
|
|
|
Currently approved revision is checked. Click revision number to view details of that revision.
|
|
|
|
|
