All names: Gaia EDR3 701377509582332288, Gaia DR3 701377509582332288, LAMOST J092741.73+332959.1, 2MASS J09274174+3329592, Gaia DR2 701377509582332288, TIC 8816258, [HHD2009] SDSS J0927+3329, WIRED J092741.73+332959.1, GALEX J092741.7+332959, SDSS J092741.73+332959.1, SDSS J092741.73+332959.2, WD 0924+337
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 27 41.72 (0.2) | 09 27 41.73 | 09 27 41.72 (0.2) | 09 27 41.73 | 09 27 41.73 (0.2) | 09 27 41.73 | 09 27 41.35 | 09 27 41.73 | ||||
| Declination | 33 29 59.15 (0.1) | 33 29 59.18 | 33 29 59.15 (0.2) | 33 29 59.10 | 33 29 59.22 (0.1) | 33 29 59.19 | 33 29 55.32 | 33 29 59.19 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 27111.0 (494) | 28550.0 (480) | 8465.0 (37) | 8284.0 (42) | |||||||
| log(g) | [cgs] | 7.91 (0.08) | 7.80 (0.09) | 8.55 (0.05) | 8.14 (0.06) | |||||||
| Mass | [M☉] | 0.59 (0.04) | 0.54 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0112 | ||||||||||
| 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] | 1.85 (0.2) | 0.82 (0.5) | 1.85 (0.2) | ||||||||
| Distance | [pc] | 541.16 (55) | 1220.47 (720) | 541.15 (55) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.07721596 (0.2) | -11.08386326 (0.5) | -10.077 (0.2) | -1.1 | |||||||
| Proper motion (declination) | [mas/yr] | -4.682082031 (0.1) | -4.795180341 (0.4) | -4.682 (0.1) | 1.6 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.97 (0.006) | |||||||||||
| H magnitude | 15.35 (0.09) | |||||||||||
| K magnitude | 15.43 (0.1) | |||||||||||
| u magnitude | 17.99 (0.01) | 18.00 | 17.98 (0.01) | 18.00 (0.02) | 18.00 | 18.00 (0.02) | ||||||
| g magnitude | 18.05 (0.006) | 18.07 | 18.04 (0.006) | 18.07 (0.04) | 18.07 | 18.06 (0.04) | ||||||
| r magnitude | 18.19 (0.007) | 18.23 | 18.19 (0.007) | 18.23 (0.02) | 18.23 | 18.22 (0.02) | ||||||
| i magnitude | 17.74 (0.007) | 17.76 | 17.74 (0.007) | 17.76 (0.02) | 17.76 | 17.76 (0.02) | ||||||
| z magnitude | 17.26 (0.01) | 17.27 | 17.26 (0.01) | 17.27 (0.01) | 17.28 | 17.27 (0.02) | ||||||
| G magnitude | 17.93 (0.01) | 17.92 | 17.93 (0.003) | |||||||||
| BP magnitude | 18.11 (0.01) | 18.11 | ||||||||||
| RP magnitude | 17.33 (0.01) | 17.34 | ||||||||||
| Pan g magnitude | 18.11 (0.005) | |||||||||||
| Pan r magnitude | 18.22 (0.006) | |||||||||||
| Pan i magnitude | 17.77 (0.003) | |||||||||||
| Pan z magnitude | 17.37 (0.006) | |||||||||||
| Pan y magnitude | 17.14 (0.01) | |||||||||||
| E(B-V) | 0.018 | |||||||||||
* 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.