All names: SDSS J114415.65+455700.1, CSO 1216, SDSS J114415.64+455700.0, SDSS J114415.64+455700.1, WIRED J114415.64+455700.1, 2MASS J11441564+4557001, Gaia DR2 774014645030887936, Gaia DR3 774014645030887936, SDSS J114415.65+455700.2, Gaia EDR3 774014645030887936, GALEX J114415.6+455700, WD 1141+462, [HHD2009] SDSS J1144+4557, TIC 115906481
| 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 | 11 44 15.61 (0.2) | 11 44 15.64 | 11 44 15.61 (0.3) | 11 44 15.64 | 11 44 15.65 (0.2) | 11 44 15.65 | 11 44 15.91 | 11 44 15.65 | ||||
| Declination | 45 56 59.70 (0.3) | 45 57 00.03 | 45 56 59.71 (0.4) | 45 57 00.11 | 45 57 00.11 (0.3) | 45 57 00.16 | 45 56 56.76 | 45 57 00.15 | ||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 19416.0 (326) | 20510.0 (360) | 8976.0 (29) | 8944.0 (35) | |||||||
| log(g) | [cgs] | 7.90 (0.06) | 7.87 (0.06) | 8.09 (0.04) | 7.80 (0.05) | |||||||
| Mass | [M☉] | 0.57 (0.03) | 0.56 (0.03) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0479 | ||||||||||
| 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] | 2.77 (0.4) | 1.90 (0.6) | 2.77 (0.4) | ||||||||
| Distance | [pc] | 360.46 (51) | 526.57 (177) | 179.00 (3) | 360.46 (51) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -27.05719995 (0.3) | -26.68286 (0.6) | -27.057 (0.3) | -28.9 | |||||||
| Proper motion (declination) | [mas/yr] | -25.67520925 (0.4) | -24.18387773 (0.7) | -25.675 (0.4) | -30.2 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.05 (0.04) | |||||||||||
| H magnitude | 14.72 (0.07) | |||||||||||
| K magnitude | 14.38 (0.09) | |||||||||||
| u magnitude | 17.68 (0.01) | 17.70 | 17.68 (0.01) | 17.70 (0.02) | 17.70 | 17.69 (0.02) | ||||||
| g magnitude | 17.47 (0.005) | 17.46 | 17.46 (0.005) | 17.46 (0.04) | 17.46 | 17.46 (0.04) | ||||||
| r magnitude | 17.44 (0.005) | 17.45 | 17.45 (0.005) | 17.45 (0.02) | 17.45 | 17.45 (0.02) | ||||||
| i magnitude | 16.89 (0.005) | 16.91 | 16.89 (0.005) | 16.91 (0.02) | 16.91 | 16.90 (0.02) | ||||||
| z magnitude | 16.36 (0.008) | 16.40 | 16.37 (0.008) | 16.40 (0.02) | 16.40 | 16.36 (0.02) | ||||||
| G magnitude | 17.27 (0.007) | 17.19 | 17.27 (0.005) | |||||||||
| BP magnitude | 17.52 (0.007) | 17.49 | ||||||||||
| RP magnitude | 16.46 (0.005) | 16.47 | ||||||||||
| Pan g magnitude | 17.51 (0.007) | |||||||||||
| Pan r magnitude | 17.48 (0.002) | |||||||||||
| Pan i magnitude | 16.89 (0.002) | |||||||||||
| Pan z magnitude | 16.48 (0.005) | |||||||||||
| Pan y magnitude | 16.27 (0.005) | |||||||||||
| E(B-V) | 0.017 | |||||||||||
* 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.