All names: PM J11109+2026, J1110+2026, Gaia DR3 3990494251184010496, SDSS J111059.03+202606.7, Gaia EDR3 3990494251184010496, 1108+207, PLX 2600.01, SDSS J111059.03+202606.6, WDJ111059.34+202606.91, TIC 98349538, PSO J167.7439+20.4350, Gaia DR2 3990494251184010496, 11109+2026, LHS 2364, LSPM J1110+2026, LP 374-4, WD 1108+207, 2MASS J11105938+2026067, NLTT 26537, USNO-B1.0 1104-00198197
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | Leggett et al. 2018 | Gaia DR2 | Stilism | Limoges et al. 2015 | Bergeron et al. 2001 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 10 58.40 (0.08) | 11 10 58.43 (0.1) | 11 10 58.43 (0.1) | 11 10 58.40 | 11 10 59.34 (0.08) | 11 10 58.43 | 11 11 02.21 | |||||||||||
| Declination | 20 26 06.23 (0.07) | 20 26 06.25 (0.1) | 20 26 06.25 (0.1) | 20 26 06.23 | 20 26 06.92 (0.07) | 20 26 06.25 | 20 26 11.76 | |||||||||||
| Spectral type | DC | DC | DC | DC | DC | DC10.6 | DC | DC | DC | DC | DC9: | |||||||
| Effective temperature | [K] | 4700.0 (10) | 4661.0 (67) | 4735.0 (16) | 4658.6 (58) | 4720.0 (35) | 4733.0 (76) | 4730.0 (109) | 4650.0 (160) | 6430.0 (140) | 4721.0 (41) | |||||||
| log(g) | [cgs] | 7.96 (0.006) | 7.93 (0.06) | 8.01 (0.01) | 7.94 (0.05) | 8.00 (0.02) | 7.99 (0.04) | 8.09 (0.1) | 8.07 (0.1) | 8.00 (0) | 7.97 (0.02) | |||||||
| Mass | [M☉] | 0.552 (0.005) | 0.536 (0.03) | 0.586 (0.009) | 0.58 (0.01) | 0.572 (0.04) | 0.64 (0.07) | 0.62 (0.07) | 0.59 | 0.563 (0.02) | ||||||||
| log(Luminosity) | [L☉] | -4.20 | -4.21 (0.06) | -3.60 | ||||||||||||||
| Cooling age | [Gyr] | 7.3700 | 6.8840 (0.3) | 6.6930 (0.5) | 7.7100 (1) | 1.9700 | ||||||||||||
| 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] | 35.91 (0.1) | 35.91 (0.1) | 35.99 (0.2) | 35.99 (0.2) | 35.99 (0.2) | 35.87 (0.8) | 35.99 (0.2) | 38.30 (3) | 38.30 (3) | 38.30 (3) | 35.91 | 35.91 (0.1) | 35.99 (0.2) | 38.00 (3) | |||
| Distance | [pc] | 27.85 (0.08) | 27.85 (0.08) | 27.79 (0.2) | 27.79 (0.2) | 27.79 (0.2) | 27.88 (0.6) | 27.79 (0.2) | 26.10 (2) | 26.11 (2) | 26.11 (2) | 27.85 | 27.85 (0.08) | 27.79 (0.2) | 26.32 (2) | |||
| Composition | H | H | H | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -823.8804828 (0.09) | -824.2238568 (0.4) | -823.88 (0.09) | -824.2238568 | |||||||||||||
| Proper motion (declination) | [mas/yr] | -43.29019141 (0.1) | -42.67485732 (0.6) | -43.29 (0.1) | -42.67485732 | |||||||||||||
| Variability | ||||||||||||||||||
| Magnetic | ||||||||||||||||||
| Bd | [MG] | |||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||
| Binarity | ||||||||||||||||||
| B magnitude | 18.67 | 18.67 | 18.67 | |||||||||||||||
| V magnitude | 17.70 | 17.70 | ||||||||||||||||
| R magnitude | 17.17 | 17.17 | 17.10 | |||||||||||||||
| I magnitude | 16.63 | 16.63 | ||||||||||||||||
| J magnitude | 15.95 (0.01) | 15.98 (0.07) | 15.91 | 15.91 | 15.98 (0.07) | |||||||||||||
| H magnitude | 15.69 (0.05) | 15.53 (0.1) | 15.69 | 15.69 | 15.53 (0.1) | |||||||||||||
| K magnitude | 15.62 (0.05) | 15.56 (0.2) | 15.62 | 15.62 | 15.56 (0.2) | |||||||||||||
| u magnitude | 19.97 (0.03) | 19.97 (0.04) | 19.97 (0.04) | |||||||||||||||
| g magnitude | 18.03 (0.006) | 18.14 (0.006) | ||||||||||||||||
| r magnitude | 17.29 (0.005) | 17.29 (0.005) | ||||||||||||||||
| i magnitude | 17.05 (0.007) | 16.99 (0.005) | ||||||||||||||||
| z magnitude | 16.90 (0.005) | 16.86 (0.01) | ||||||||||||||||
| G magnitude | 17.34 (0.02) | 17.35 | 17.35 | 17.34 | 17.34 (0.003) | 17.35 | ||||||||||||
| BP magnitude | 17.91 (0.02) | 17.91 | 17.91 | |||||||||||||||
| RP magnitude | 16.65 (0.008) | 16.66 | 16.66 | |||||||||||||||
| Pan g magnitude | 18.03 (0.007) | 18.03 (0.006) | 18.03 (0.006) | |||||||||||||||
| Pan r magnitude | 17.33 (0.02) | 17.33 (0.02) | 17.33 (0.02) | |||||||||||||||
| Pan i magnitude | 17.05 (0.007) | 17.05 (0.007) | 17.05 (0.007) | |||||||||||||||
| Pan z magnitude | 16.90 (0.005) | 16.90 (0.005) | 16.90 (0.005) | |||||||||||||||
| Pan y magnitude | 16.85 (0.01) | 16.85 (0.01) | 16.85 (0.01) | |||||||||||||||
| E(B-V) | 0.001 | |||||||||||||||||
* 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.