NLTT 27055

All names: SDSS J112019.95+154145.5, Gaia EDR3 3970110435180948352, NLTT 27055, GALEX J112019.9+154147, LP 432-40, Gaia DR2 3970110435180948352, SDSS J112019.94+154145.3, USNO-B1.0 1056-00205242, Gaia DR3 3970110435180948352, LSPM J1120+1541, SDSS J112019.96+154145.6

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 11 20 19.88 (0.2) 11 20 19.96 11 20 19.88 (0.3) 11 20 19.88 11 20 19.98 (0.2) 11 20 19.96
Declination 15 41 44.00 (0.2) 15 41 45.53 15 41 44.06 (0.2) 15 41 44.00 15 41 46.05 (0.2) 15 41 45.57
Spectral type DC DC DZ DC DC DZ
Effective temperature [K] 8360.0 8094.0 7355.0 (323) 10088.0 (20)
log(g) [cgs] 8.37 8.29 8.04 (0.08) 9.54 (0.4)
Mass [M] 0.834 0.765 0.599 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 1.8610 1.8030
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 7.42 (0.2) 7.73 (0.3) 7.42 7.42 (0.2)
Distance [pc] 134.84 (4) 129.34 (5) 134.84 134.84 (4)
Composition
Proper motion (right ascension) [mas/yr] -86.18028881 (0.3) -86.67447599 (0.5) -86.18 (0.3)
Proper motion (declination) [mas/yr] -128.2611739 (0.2) -128.3019433 (0.5) -128.261 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.70
V magnitude
R magnitude 19.50
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.35 (0.03) 19.35 (0.03) 19.38 (0.04)
g magnitude 19.01 (0.009) 19.01 (0.009) 19.00 (0.02)
r magnitude 18.96 (0.01) 18.96 (0.01) 18.95 (0.02)
i magnitude 18.99 (0.02) 18.99 (0.02) 19.00 (0.02)
z magnitude 19.17 (0.06) 19.17 (0.06) 19.17 (0.06)
G magnitude 18.92 (0.05) 18.96 18.92 18.92 (0.004)
BP magnitude 19.07 (0.05) 19.08
RP magnitude 18.74 (0.03) 18.70
Pan g magnitude 19.01 (0.01)
Pan r magnitude 18.96 (0.007)
Pan i magnitude 19.05 (0.007)
Pan z magnitude 19.14 (0.01)
Pan y magnitude 19.16 (0.03)
E(B-V) 0.007

* Constant surface field

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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.