All names: WISEA J162448.99+321702.0, [HHD2009] SDSS J1624+3217, TIC 8445641, WD 1622+323, SDSS J162449.00+321702.0, [SGR2010] J1624+3217, UCAC4 612-052543, 2MASS J16244899+3217021, GALEX J162449.0+321702, LAMOST J162449.00+321702.0, WISE J162449.00+321702.1, WDS J16248+3217AB, Gaia DR3 1325292874503029248, Gaia EDR3 1325292874503029248, Gaia DR2 1325292874503029248, PG 1622+324, SDSS J162448.99+321702.0, WIRED J162449.00+321702.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Gianninas et al. 2011 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 24 49.00 (0.1) | 16 24 49.00 | 16 24 49.00 (0.1) | 16 24 49.00 | 16 24 49.00 (0.1) | 16 24 48.14 | 16 24 49.00 | |||||
| Declination | 32 17 01.91 (0.1) | 32 17 02.03 | 32 17 01.92 (0.1) | 32 17 02.00 | 32 17 02.10 (0.1) | 32 16 53.76 | 32 17 02.02 | |||||
| Spectral type | DA+M | DA+M | DA | DA+dM | DA6 | DA+M | ||||||
| Effective temperature | [K] | 68317.0 (1948) | 79095.0 (3888) | 66480.0 (3712) | 10300.0 (118) | |||||||
| log(g) | [cgs] | 7.57 (0.09) | 7.77 (0.1) | 7.13 (0.2) | 8.45 (0.1) | |||||||
| Mass | [M☉] | 0.56 (0.03) | 0.66 (0.05) | 0.41 (0.05) | ||||||||
| log(Luminosity) | [L☉] | 0.91 (0.09) | ||||||||||
| Cooling age | [Gyr] | 0.0006 (0.0002) | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(C/H) | ||||||||||||
| log(N/H) | ||||||||||||
| log(O/H) | ||||||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | ||||||||||||
| log(Al/H) | ||||||||||||
| log(Si/H) | ||||||||||||
| log(P/H) | ||||||||||||
| log(S/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| Parallax | [mas] | 2.30 (0.2) | 2.51 (0.2) | 2.30 (0.2) | ||||||||
| Distance | [pc] | 434.78 (29) | 397.87 (27) | 1072.00 (256) | 653.00 | 434.78 (29) | ||||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.864027685 (0.1) | -1.382167557 (0.3) | -0.864 (0.1) | ||||||||
| Proper motion (declination) | [mas/yr] | -11.5648288 (0.2) | -11.1686487 (0.3) | -11.565 (0.2) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | yes | WDMS | |||||||||
| B magnitude | 16.26 (0.07) | |||||||||||
| V magnitude | 16.32 (0.02) | |||||||||||
| R magnitude | 16.49 (0.1) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 14.63 (0.03) | |||||||||||
| H magnitude | 13.96 (0.03) | |||||||||||
| K magnitude | 13.77 (0.04) | |||||||||||
| u magnitude | 15.77 (0.005) | 15.79 | 15.77 (0.005) | 15.78 | 15.78 (0.01) | |||||||
| g magnitude | 16.09 (0.003) | 16.12 | 16.09 (0.003) | 16.12 | 16.11 (0.02) | |||||||
| r magnitude | 16.25 (0.003) | 16.24 | 16.25 (0.003) | 16.23 | 16.24 (0.02) | |||||||
| i magnitude | 15.96 (0.004) | 16.00 | 15.96 (0.004) | 15.99 | 16.00 (0.02) | |||||||
| z magnitude | 15.72 (0.006) | 15.75 | 15.72 (0.006) | 15.74 | 15.72 (0.02) | |||||||
| G magnitude | 16.07 (0.003) | 16.04 | 16.07 (0.003) | |||||||||
| BP magnitude | 16.15 (0.003) | 16.12 | ||||||||||
| RP magnitude | 15.62 (0.003) | 15.63 | ||||||||||
| Pan g magnitude | 16.18 (0.002) | |||||||||||
| Pan r magnitude | 16.29 (0.002) | |||||||||||
| Pan i magnitude | 16.00 (0.002) | |||||||||||
| Pan z magnitude | 15.78 (0.003) | |||||||||||
| Pan y magnitude | 15.65 (0.003) | |||||||||||
| E(B-V) | 0.022 | |||||||||||
* 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.