LP402-028

All names: LP402-028, Gaia DR3 2841680934336159104, LSPM J2327+2638N, WDS J23279+2638B, SDSS J232755.21+263819.5, Gaia EDR3 2841680934336159104, Gaia DR2 2841680934336159104, NLTT 56949, WD 2325+263.2, WDJ232755.27+263821.32, J2327+2638, LP 402-28, ** LDS 5094B

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 23 27 55.17 (0.1) 23 27 55.17 (0.2) 23 27 55.17 23 27 55.27 (0.1) 23 27 55.17 23 27 58.94
Declination 26 38 18.45 (0.08) 26 38 18.54 (0.09) 26 38 18.45 26 38 21.32 (0.08) 26 38 18.54 26 38 31.56
Spectral type DC DC DC DC DC DC DC
Effective temperature [K] 4916.0 (20) 4951.0 (19) 4911.0 4596.0 4948.0 (54)
log(g) [cgs] 8.03 (0.01) 8.06 (0.01) 8.03 7.81 8.07 (0.03)
Mass [M] 0.596 (0.01) 0.615 (0.01) 0.595 0.458 0.621 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 6.9900 6.3890 4.8170
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] 21.75 (0.1) 21.76 (0.2) 21.76 (0.2) 21.75 21.75 (0.1) 21.76 (0.2)
Distance [pc] 45.99 (0.3) 45.96 (0.5) 45.96 (0.5) 45.99 45.99 (0.3) 45.96 (0.5)
Composition H H
Proper motion (right ascension) [mas/yr] -85.33953526 (0.1) -85.15815393 (0.3) -85.34 (0.1) -85.15815393
Proper motion (declination) [mas/yr] -178.9889424 (0.1) -179.2769534 (0.2) -178.989 (0.1) -179.2769534
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity yes
B magnitude
V magnitude 18.90
R magnitude
I magnitude
J magnitude 17.00 (0.02)
H magnitude
K magnitude
u magnitude 20.65 (0.1) 20.64 (0.1) 20.64 (0.1)
g magnitude 19.04 (0.01) 19.04 (0.01)
r magnitude 18.29 (0.009) 18.29 (0.009)
i magnitude 18.01 (0.009) 18.01 (0.009)
z magnitude 17.89 (0.03) 17.89 (0.03)
G magnitude 18.30 (0.02) 18.33 18.30 18.30 (0.003) 18.33
BP magnitude 18.85 (0.02) 18.86 18.86
RP magnitude 17.68 (0.009) 17.66 17.66
Pan g magnitude 18.92 (0.006) 18.92 (0.006)
Pan r magnitude 18.24 (0.01) 18.24 (0.01)
Pan i magnitude 18.00 (0.005) 18.00 (0.005)
Pan z magnitude 17.91 (0.006) 17.91 (0.007)
Pan y magnitude 17.86 (0.01) 17.86 (0.01)
E(B-V) 0.003

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.