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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179852530 (SMSS J172754.82-203739.0)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.978
Dec (deg)-20.628
Galactic lon. (deg)4.896
Galactic lat. (deg)7.830
E(B-V) (SFD98) (mag)0.860
E(B-V) (GNILC) (mag)0.782 ± 0.037
Nearest DR4 source 179852553 (6.6 arcs away)
2nd-nearest DR4 source 179852531 (7.8 arcs away)
3rd-nearest DR4 source 179852529 (9.5 arcs away)
Times observed43
Total bad pixels4
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.770 ± 0.014 16.615 ± 0.012 15.698 ± 0.009 15.179 ± 0.010
Petrosian mag. — — 17.621 ± 0.034 16.499 ± 0.039 15.629 ± 0.028 15.186 ± 0.022

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 20140719114908 17.803 ± 0.081 0,0 5 2
g 20140722114132 17.667 ± 0.065 0,0 5 2
g 20160420170043 17.943 ± 0.124 0,0 5 2
g 20160420172300 17.885 ± 0.107 0,0 5 2
g 20180605124544 17.729 ± 0.082 0,0 5 2
g 20190505165725 17.778 ± 0.029 3,0 100 2
g 20190506165109 17.784 ± 0.026 3,0 100 2
g 20190822094124 17.779 ± 0.028 3,0 100 2
g 20210407183532 17.793 ± 0.090 0,0 5 2
r 20140719114939 16.672 ± 0.048 0,0 5 2
r 20140722114203 16.573 ± 0.040 0,0 5 2
r 20160420170109 16.673 ± 0.050 0,4 5 2
r 20160420172325 16.724 ± 0.047 0,0 5 2
r 20190505165926 16.607 ± 0.030 3,0 100 2
r 20190506165309 16.623 ± 0.026 3,0 100 2
r 20190822094324 16.620 ± 0.029 3,0 100 2
r 20200524153415 16.673 ± 0.058 0,0 5 2
r 20210407183558 16.588 ± 0.048 0,0 5 2
i 20140719115004 15.663 ± 0.031 3,0 10 2
i 20140722114229 15.712 ± 0.032 0,0 10 2
i 20150901084153 15.698 ± 0.029 3,0 100 2
i 20160420170134 15.778 ± 0.030 0,0 10 2
i 20160420172350 15.698 ± 0.031 0,0 10 2
i 20180605124636 15.711 ± 0.038 3,0 10 2
i 20190505170526 15.704 ± 0.030 3,0 100 2
i 20190508164002 15.712 ± 0.035 3,0 100 2
i 20190509140533 15.700 ± 0.050 3,0 100 2
i 20190720124743 15.689 ± 0.061 3,0 100 2
i 20200513190610 15.703 ± 0.032 3,0 100 2
i 20200524153441 15.707 ± 0.038 3,0 10 2
i 20210407183626 15.692 ± 0.036 0,0 10 2
z 20140719115035 15.193 ± 0.032 3,0 20 2
z 20140722114259 15.162 ± 0.030 0,0 20 2
z 20150901084353 15.196 ± 0.031 3,0 100 2
z 20160420170204 15.233 ± 0.028 0,0 20 2
z 20160420172420 15.195 ± 0.027 0,0 20 2
z 20180605124707 15.182 ± 0.034 3,0 20 2
z 20190505170726 15.182 ± 0.029 3,0 100 2
z 20190508164202 15.189 ± 0.028 3,0 100 2
z 20190509140733 15.181 ± 0.052 3,0 100 2
z 20190720124943 15.165 ± 0.057 3,0 100 2
z 20200513190811 15.190 ± 0.035 3,0 100 2
z 20200524153511 15.190 ± 0.037 3,0 20 3
z 20210407183658 15.179 ± 0.033 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.04 3.02
GAIA source ID 4121033631823513728 4121033631793461248
Bp mag. 17.536 21.358
G mag. 16.378 20.661
Rp mag. 15.328 19.618
Bp/Rp excess 1.357 1.481
Parallax (mas) 0.179 ± 0.062 -- ± --
PM RA (mas/yr) -3.289 ± 0.069 -- ± --
PM Dec (mas/yr) -5.213 ± 0.052 -- ± --
A.E.N. (mas) 0.095 ± 0.653 2.762 ± 1.451

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.643 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 13.654 ± 0.019
H 12.858 ± 0.026
K 12.624 ± 0.024
W1 12.473 ± 0.012
W2 12.672 ± 0.011
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.