All names: vB 3, LSR J1817+1328, PM J18171+1328, 2MASS J18170648+1328248, USNO-B1.0 1034-00319224, WD 0743-336, WDJ074538.43-335551.34, Gaia DR2 5588614164276695424, VB 03, WD 1814+134, WISEA J181706.17+132813.5, LSPM J1817+1328, vB03, VB03, Gaia DR2 4497414466452138496
| Parameter | Unit | Gaia DR2 | Tremblay et al. 2017 | Holberg et al. 2016 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Bergeron et al. 2001 | Bergeron et al. 1997 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 45 38.08 (0.03) | 07 45 38.40 | 18 17 06.50 (0.03) | 07 45 38.08 | 07 45 39.65 | |||||||
| Declination | -33 55 25.29 (0.04) | -33 55 51.60 | 13 28 24.99 (0.04) | -33 55 25.29 | -33 49 16.32 | |||||||
| Spectral type | DC | DC | DC10.6 | DC | DC | DC | DA10 | DC9 | ||||
| Effective temperature | [K] | 4460.0 (100) | 4462.0 (85) | 4462.0 | 4462.0 (85) | 4740.0 (50) | 4760.0 (50) | |||||
| log(g) | [cgs] | 7.96 (0.01) | 7.96 (0.01) | 7.97 (0.09) | 7.99 (0.08) | |||||||
| Mass | [M☉] | 0.56 (0.01) | 0.55 (0.01) | 0.55 (0.05) | 0.56 (0.05) | |||||||
| log(Luminosity) | [L☉] | -4.23 | -4.14 (0.04) | -4.14 (0.04) | ||||||||
| Cooling age | [Gyr] | 7.3400 | 7.3200 | 6.3600 (1) | 6.5300 (1) | |||||||
| 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] | 64.78 (0.04) | 65.75 (0.5) | 65.74 (0.5) | 65.79 (0.6) | 65.79 (0.4) | 57.50 (3) | 57.50 (3) | 66.07 (0.05) | 64.78 (0.04) | 575.00 (3) | |
| Distance | [pc] | 15.44 (0.01) | 15.21 (0.1) | 15.21 (0.1) | 15.19 | 15.20 (0.1) | 15.20 | 17.39 (0.9) | 17.39 (0.9) | 15.14 (0.01) | 15.44 (0.01) | 1.74 (0.009) |
| Composition | H | H | He | He | He | |||||||
| Proper motion (right ascension) | [mas/yr] | -276.1777827 (0.07) | -436.059 (0.08) | -276.1777827 | ||||||||
| Proper motion (declination) | [mas/yr] | 1680.402062 (0.08) | -1115.45 (0.09) | 1680.402062 | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | ||||||||||
| B magnitude | 17.81 | 17.81 | 17.81 | 16.60 | ||||||||
| V magnitude | 16.59 (0.05) | 16.59 | 16.60 | 16.60 | 16.60 | 15.85 | ||||||
| R magnitude | 15.96 | 15.96 | 15.96 | 15.40 | ||||||||
| I magnitude | 15.39 | 15.39 | 15.39 | 14.92 | ||||||||
| J magnitude | 14.78 | 14.85 | 14.85 | 14.38 (0.04) | ||||||||
| H magnitude | 14.55 | 14.71 | 14.71 | 14.10 (0.06) | ||||||||
| K magnitude | 14.40 | 14.55 | 14.55 | 14.07 (0.06) | ||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 16.27 | 15.63 (0.0006) | 16.27 | |||||||||
| BP magnitude | 16.91 | 16.91 | ||||||||||
| RP magnitude | 15.51 | 15.51 | ||||||||||
| Pan g magnitude | ||||||||||||
| Pan r magnitude | ||||||||||||
| Pan i magnitude | ||||||||||||
| Pan z magnitude | ||||||||||||
| Pan y magnitude | ||||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.