All names: SDSS J092137.92+161338.6, Gaia DR2 631006424645993472, SDSS J092137.90+161338.5, WIRED J092137.89+161338.4, TIC 55317078, Gaia EDR3 631006424645993472, WD 0918+164, Gaia DR3 631006424645993472, GALEX J092137.9+161338, SDSS J092137.89+161338.4, 2MASS J09213791+1613384
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 21 37.87 (0.09) | 09 21 37.90 | 09 21 37.88 (0.1) | 09 21 37.89 | 09 21 37.91 (0.09) | 09 21 37.32 | 09 21 37.90 | |||
| Declination | 16 13 38.38 (0.07) | 16 13 38.52 | 16 13 38.39 (0.1) | 16 13 38.39 | 16 13 38.50 (0.07) | 16 13 35.76 | 16 13 38.50 | |||
| Spectral type | DA+M | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 5.01 (0.02) | ||||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 3.74 (0.1) | 3.98 (0.2) | 3.74 (0.1) | ||||||
| Distance | [pc] | 267.66 (9) | 250.98 (11) | 267.67 (9) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -28.14205823 (0.1) | -27.80794947 (0.2) | -28.142 (0.1) | ||||||
| Proper motion (declination) | [mas/yr] | -7.074322577 (0.1) | -6.930809391 (0.2) | -7.074 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.14 (0.04) | |||||||||
| H magnitude | 14.54 (0.06) | |||||||||
| K magnitude | 14.24 (0.07) | |||||||||
| u magnitude | 19.37 (0.03) | 19.30 | 19.38 (0.03) | 19.30 | 19.29 (0.03) | |||||
| g magnitude | 18.67 (0.008) | 18.68 | 18.67 (0.008) | 18.68 | 18.67 (0.02) | |||||
| r magnitude | 18.21 (0.007) | 18.20 | 18.21 (0.007) | 18.20 | 18.20 (0.02) | |||||
| i magnitude | 17.20 (0.006) | 17.19 | 17.21 (0.006) | 17.19 | 17.20 (0.02) | |||||
| z magnitude | 16.50 (0.008) | 16.48 | 16.49 (0.008) | 16.47 | 16.49 (0.02) | |||||
| G magnitude | 17.71 (0.01) | 17.73 | 17.71 (0.003) | |||||||
| BP magnitude | 18.58 (0.01) | 18.58 | ||||||||
| RP magnitude | 16.71 (0.004) | 16.71 | ||||||||
| Pan g magnitude | 18.62 (0.006) | |||||||||
| Pan r magnitude | 18.20 (0.004) | |||||||||
| Pan i magnitude | 17.19 (0.006) | |||||||||
| Pan z magnitude | 16.61 (0.004) | |||||||||
| Pan y magnitude | 16.31 (0.009) | |||||||||
| 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.