All names: 2MASS J16232950+3554272, SDSS J162329.51+355427.2, USNO-A2.0 1200-07857784, [HHD2009] SDSS J1623+3554, GALEX J162329.5+355427, WD 1621+360, WIRED J162329.50+355427.2, Gaia DR2 1329471156127367424, Gaia EDR3 1329471156127367424, TIC 8413490, SDSS J162329.51+355427.1, SDSS J162329.50+355427.2, Gaia DR3 1329471156127367424
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 23 29.50 (0.08) | 16 23 29.51 | 16 23 29.50 (0.1) | 16 23 29.50 | 16 23 29.50 (0.08) | 16 23 29.51 | 16 23 28.61 | 16 23 29.51 | |||
| Declination | 35 54 27.27 (0.1) | 35 54 27.18 | 35 54 27.26 (0.2) | 35 54 27.22 | 35 54 27.11 (0.1) | 35 54 27.26 | 35 54 24.84 | 35 54 27.23 | |||
| Spectral type | DB+M | DB+dM | DB+M | DB2.1+dM | DB+M | ||||||
| Effective temperature | [K] | 15730.0 (39) | 6300.0 (2) | 6300.0 (3) | |||||||
| log(g) | [cgs] | 9.00 | 8.95 (0.06) | 10.00 (0.003) | |||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.32 (0.1) | 2.33 (0.2) | 2.32 (0.1) | |||||||
| Distance | [pc] | 430.53 (20) | 428.99 (28) | 43.00 (4) | 430.53 (20) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.506487202 (0.1) | -6.426335116 (0.3) | -6.506 (0.1) | -1.7 | ||||||
| Proper motion (declination) | [mas/yr] | 9.642754356 (0.1) | 10.14280183 (0.4) | 9.643 (0.1) | 8.9 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | 18.64 | ||||||||||
| V magnitude | 18.66 | ||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.11 (0.08) | ||||||||||
| H magnitude | 15.37 (0.09) | ||||||||||
| K magnitude | 15.19 (0.1) | ||||||||||
| u magnitude | 18.78 (0.02) | 18.80 | 18.79 (0.02) | 18.80 (0.03) | 18.79 | 18.81 (0.02) | |||||
| g magnitude | 18.73 (0.008) | 18.79 | 18.77 (0.009) | 18.79 (0.02) | 18.77 | 18.79 (0.02) | |||||
| r magnitude | 18.55 (0.008) | 18.56 | 18.56 (0.009) | 18.56 (0.02) | 18.55 | 18.57 (0.02) | |||||
| i magnitude | 17.88 (0.007) | 17.90 | 17.90 (0.008) | 17.90 (0.01) | 17.90 | 17.90 (0.01) | |||||
| z magnitude | 17.32 (0.01) | 17.38 | 17.37 (0.01) | 17.38 (0.02) | 17.37 | 17.37 (0.02) | |||||
| G magnitude | 18.23 (0.02) | 18.24 | 18.23 (0.003) | ||||||||
| BP magnitude | 18.71 (0.02) | 18.66 | |||||||||
| RP magnitude | 17.48 (0.01) | 17.45 | |||||||||
| Pan g magnitude | 18.73 (0.01) | ||||||||||
| Pan r magnitude | 18.59 (0.01) | ||||||||||
| Pan i magnitude | 17.89 (0.003) | ||||||||||
| Pan z magnitude | 17.45 (0.006) | ||||||||||
| Pan y magnitude | 17.23 (0.008) | ||||||||||
| E(B-V) | 0.020 | ||||||||||
* 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.