All names: Gaia DR2 1025475604298583552, SDSS J093918.47+572901.2, WISEA J093918.49+572901.0, GALEX J093918.4+572901, WD 0935+577, SDSS J093918.47+572901.1, LAMOST J093918.47+572901.1, WIRED J093918.47+572901.1, SDSS J093918.46+572901.5, 2MASS J09391849+5729013, SDSS J093918.48+572901.1, TIC 328602973, WISE J093918.49+572901.2, Gaia EDR3 1025475600003710080, [HHD2009] SDSS J0939+5729
| 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 39 18.49 (0.9) | 09 39 18.49 | 09 39 18.49 (0.7) | 09 39 18.47 | 09 39 18.49 (70) | 09 39 18.48 | 09 39 18.05 | 09 39 18.47 | ||||
| Declination | 57 29 00.42 (1) | 57 29 01.14 | 57 29 00.87 (0.9) | 57 29 01.10 | 57 29 01.39 (70) | 57 29 01.22 | 57 28 55.56 | 57 29 01.17 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA+M | DA+M | ||||||
| Effective temperature | [K] | 13904.0 (596) | 13730.0 (880) | 7787.0 (40) | 7719.0 (66) | |||||||
| log(g) | [cgs] | 7.61 (0.1) | 8.00 (0.09) | 5.62 (0.07) | 5.34 (0.1) | |||||||
| Mass | [M☉] | 0.41 (0.05) | 0.61 (0.06) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.3090 | ||||||||||
| 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] | 11.51 (1) | ||||||||||
| Distance | [pc] | 86.86 (9) | 490.00 (101) | |||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 3.028255713 (1) | 2.0 (3) | 4.2 | ||||||||
| Proper motion (declination) | [mas/yr] | -30.7481626 (1) | -31.0 (3) | -32.0 | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.68 (0.07) | |||||||||||
| H magnitude | 15.17 (0.1) | |||||||||||
| K magnitude | 14.68 (0.1) | |||||||||||
| u magnitude | 18.67 (0.02) | 18.67 | 18.67 (0.02) | 18.67 (0.02) | 18.69 | 18.67 (0.02) | ||||||
| g magnitude | 18.28 (0.007) | 18.32 | 18.28 (0.007) | 18.32 (0.02) | 18.30 | 18.32 (0.02) | ||||||
| r magnitude | 18.16 (0.007) | 18.21 | 18.16 (0.007) | 18.21 (0.02) | 18.21 | 18.21 (0.02) | ||||||
| i magnitude | 17.49 (0.006) | 17.53 | 17.50 (0.006) | 17.54 (0.02) | 17.53 | 17.54 (0.02) | ||||||
| z magnitude | 16.88 (0.01) | 16.92 | 16.89 (0.01) | 16.92 (0.02) | 16.91 | 16.93 (0.02) | ||||||
| G magnitude | 18.49 (0.01) | 18.51 | ||||||||||
| BP magnitude | 18.28 (0.01) | 18.32 | ||||||||||
| RP magnitude | 17.04 (0.02) | 17.07 | ||||||||||
| Pan g magnitude | 18.29 (0.005) | |||||||||||
| Pan r magnitude | 18.23 (0.01) | |||||||||||
| Pan i magnitude | 17.55 (0.004) | |||||||||||
| Pan z magnitude | 17.07 (0.007) | |||||||||||
| Pan y magnitude | 16.78 (0.007) | |||||||||||
| E(B-V) | 0.004 | |||||||||||
* 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.