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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 229802955 (SMSS J185712.05-301927.6)

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Data releaseDR4
RA (deg)284.3003
Dec (deg)-30.3243
Galactic lon. (deg)5.9436
Galactic lat. (deg)-14.4503
E(B-V) (SFD98) (mag)0.145
E(B-V) (GNILC) (mag)0.134 ± 0.006
Nearest DR4 source 229802952 (5.9 arcs away)
2nd-nearest DR4 source 229802843 (7.5 arcs away)
3rd-nearest DR4 source 229802848 (8.9 arcs away)
Times observed11
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 19.349 ± 0.017 19.031 ± 0.034 18.824 ± 0.034 18.484 ± 0.181
Petrosian mag. 19.433 ± 0.105 19.104 ± 0.074 18.987 ± 0.129 18.884 ± 0.129

2 x 2 arcmin

Image cutouts

See all image cutouts for this object here.
Images shown are the best images available from DR4, as determined by their coverage and approximate photometric zero-point.

Photometry measurements

Filter Image ID Magnitude (APC05) Flags Exp time (s) Image Quality
(1=best to 3)
g 20140828094429 19.402 ± 0.052 3,0 100 1
g 20140831091248 19.347 ± 0.051 0,0 100 1
g 20141006094739 19.297 ± 0.115 0,0 100 3
g 20190829093256 19.358 ± 0.055 3,0 100 2
r 20140828094629 19.122 ± 0.055 1,0 100 1
r 20140831091449 18.997 ± 0.051 0,0 100 1
r 20141006094940 19.199 ± 0.118 0,0 100 3
r 20170825115621 19.039 ± 0.056 1,0 100 1
r 20190829093456 19.077 ± 0.058 1,0 100 2
i 20140828095230 18.938 ± 0.082 0,0 100 1
i 20180323190254 18.837 ± 0.075 0,0 100 1
i 20190806110632 18.743 ± 0.075 0,0 100 2
z 20180323190454 18.631 ± 0.121 0,0 100 1

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.2 5.95
GAIA source ID 6760443351888690176 6760443351888687104
Bp mag. 19.372 19.498
G mag. 19.181 19.033
Rp mag. 18.496 18.493
Bp/Rp excess 1.399 1.164
Parallax (mas) -0.865 ± 0.339 0.192 ± 0.264
PM RA (mas/yr) -0.107 ± 0.385 -0.877 ± 0.286
PM Dec (mas/yr) -4.856 ± 0.331 -3.531 ± 0.256
A.E.N. (mas) 1.356 ± 4.128 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u 20.510 ± 0.021
g 19.416 ± 0.003
r 19.017 ± 0.002
i 18.745 ± 0.006
z 18.704 ± 0.009
Y -- ± --
J 17.775 ± 0.056
H -- ± --
K 17.371 ± 0.140
W1 -- ± --
W2 -- ± --
W3 -- ± --
W4 -- ± --
1Magnitude sources
FUV/NUV: AB mag (calibrated) from GALEX
ugriz: AB mag (Kron) from NOAO Source Catalog
YJHK: Vega mag from VISTA (2" aperture) or 2MASS PSC
W1-W4: Vega mag from CatWISE2020 or AllWISE (profile mag). No error value means the stated value is an upper limit.