All names: Gaia DR2 4460365421418379136, [HHD2009] SDSS J1630+1252, GALEX J163014.5+125213, SDSS J163014.50+125214.0, Gaia DR3 4460365421418379136, 2MASS J16301446+1252142, [SGR2010] J1630+1252, SDSS J163014.50+125214.1, SDSS J163014.51+125214.1, WD 1627+129, Gaia EDR3 4460365421418379136, WIRED J163014.50+125214.1, TIC 233687227
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 30 14.50 (0.09) | 16 30 14.51 | 16 30 14.50 (0.1) | 16 30 14.50 | 16 30 14.50 | 16 30 14.51 (0.09) | 16 30 14.64 | 16 30 14.51 | ||||
| Declination | 12 52 14.19 (0.06) | 12 52 14.08 | 12 52 14.19 (0.07) | 12 52 14.09 | 12 52 14.19 | 12 52 14.04 (0.06) | 12 52 08.76 | 12 52 14.11 | ||||
| Spectral type | DA+M | DA | DA+M | DA1.9 | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 27111.0 (552) | 24840.0 (367) | |||||||||
| log(g) | [cgs] | 7.99 (0.09) | 7.45 (0.06) | |||||||||
| Mass | [M☉] | 0.63 (0.05) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 2.12 (0.1) | 2.15 (0.1) | 2.12 | 2.12 (0.1) | |||||||
| Distance | [pc] | 472.23 (26) | 466.04 (31) | 993.00 (254) | 472.23 | 472.23 (26) | ||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.40645474 (0.1) | -10.81012624 (0.2) | -10.406 (0.1) | ||||||||
| Proper motion (declination) | [mas/yr] | 9.38178858 (0.09) | 9.17233792 (0.2) | 9.382 (0.09) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | yes | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 17.05 (0.2) | |||||||||||
| H magnitude | 16.31 (0.2) | |||||||||||
| K magnitude | 15.85 (0.1) | |||||||||||
| u magnitude | 17.95 (0.01) | 18.02 | 17.95 (0.01) | 18.01 | 18.01 (0.02) | |||||||
| g magnitude | 18.10 (0.006) | 18.13 | 18.10 (0.006) | 18.12 | 18.12 (0.01) | |||||||
| r magnitude | 18.42 (0.008) | 18.44 | 18.43 (0.008) | 18.43 | 18.43 (0.01) | |||||||
| i magnitude | 18.32 (0.009) | 18.30 | 18.32 (0.009) | 18.29 | 18.31 (0.02) | |||||||
| z magnitude | 18.04 (0.02) | 18.01 | 18.04 (0.02) | 18.00 | 18.02 (0.02) | |||||||
| G magnitude | 18.15 (0.009) | 18.17 | 18.15 | 18.15 (0.003) | ||||||||
| BP magnitude | 18.21 (0.009) | 18.16 | ||||||||||
| RP magnitude | 17.91 (0.01) | 17.93 | ||||||||||
| Pan g magnitude | 18.16 (0.01) | |||||||||||
| Pan r magnitude | 18.45 (0.006) | |||||||||||
| Pan i magnitude | 18.31 (0.006) | |||||||||||
| Pan z magnitude | 18.09 (0.009) | |||||||||||
| Pan y magnitude | 17.91 (0.009) | |||||||||||
| E(B-V) | 0.051 | |||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.