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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179852531 (SMSS J172755.32-203741.9)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.981
Dec (deg)-20.628
Galactic lon. (deg)4.897
Galactic lat. (deg)7.828
E(B-V) (SFD98) (mag)0.860
E(B-V) (GNILC) (mag)0.782 ± 0.037
Nearest DR4 source 179852540 (5.4 arcs away)
2nd-nearest DR4 source 179852530 (7.8 arcs away)
3rd-nearest DR4 source 179852554 (11.1 arcs away)
Times observed43
Total bad pixels3
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.567 ± 0.024 16.447 ± 0.015 15.531 ± 0.012 15.026 ± 0.011
Petrosian mag. — — 17.234 ± 0.041 16.278 ± 0.061 15.425 ± 0.036 14.963 ± 0.038

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 17.662 ± 0.073 0,0 5 2
g 20140722114132 17.462 ± 0.058 0,0 5 2
g 20160420170043 17.620 ± 0.094 0,0 5 2
g 20160420172300 17.620 ± 0.086 0,0 5 2
g 20180605124544 17.668 ± 0.079 0,0 5 2
g 20190505165725 17.589 ± 0.028 3,0 100 2
g 20190506165109 17.609 ± 0.025 3,0 100 2
g 20190822094124 17.534 ± 0.027 3,0 100 2
g 20210407183532 17.575 ± 0.075 0,0 5 2
r 20140719114939 16.485 ± 0.043 0,0 5 2
r 20140722114203 16.453 ± 0.038 0,0 5 2
r 20160420170109 16.491 ± 0.044 0,3 5 2
r 20160420172325 16.570 ± 0.042 0,0 5 2
r 20190505165926 16.410 ± 0.030 3,0 100 2
r 20190506165309 16.414 ± 0.026 3,0 100 2
r 20190822094324 16.462 ± 0.029 3,0 100 2
r 20200524153415 16.441 ± 0.051 0,0 5 2
r 20210407183558 16.458 ± 0.045 0,0 5 2
i 20140719115004 15.550 ± 0.030 3,0 10 2
i 20140722114229 15.526 ± 0.031 3,0 10 2
i 20150901084153 15.529 ± 0.029 3,0 100 2
i 20160420170134 15.550 ± 0.028 3,0 10 2
i 20160420172350 15.581 ± 0.029 0,0 10 2
i 20180605124636 15.623 ± 0.037 2,0 10 2
i 20190505170526 15.521 ± 0.030 3,0 100 2
i 20190508164002 15.582 ± 0.035 3,0 100 2
i 20190509140533 15.530 ± 0.050 3,0 100 2
i 20190720124743 15.575 ± 0.061 3,0 100 2
i 20200513190610 15.618 ± 0.031 3,0 100 2
i 20200524153441 15.594 ± 0.037 2,0 10 2
i 20210407183626 15.511 ± 0.034 3,0 10 2
z 20140719115035 15.020 ± 0.031 3,0 20 2
z 20140722114259 15.043 ± 0.029 1,0 20 2
z 20150901084353 15.026 ± 0.031 3,0 100 2
z 20160420170204 15.042 ± 0.026 3,0 20 2
z 20160420172420 15.047 ± 0.026 0,0 20 2
z 20180605124707 15.055 ± 0.034 3,0 20 2
z 20190505170726 15.029 ± 0.029 3,0 100 2
z 20190508164202 15.023 ± 0.028 3,0 100 2
z 20190509140733 15.017 ± 0.052 3,0 100 2
z 20190720124943 15.105 ± 0.057 3,0 100 2
z 20200513190811 15.072 ± 0.035 3,0 100 2
z 20200524153511 15.028 ± 0.036 3,0 20 3
z 20210407183658 15.025 ± 0.031 3,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.19 2.82
GAIA source ID 4121033631823508352 4121033631786577792
Bp mag. 17.338 19.590
G mag. 16.230 18.785
Rp mag. 15.191 17.778
Bp/Rp excess 1.358 1.409
Parallax (mas) 0.250 ± 0.070 0.411 ± 0.254
PM RA (mas/yr) -0.712 ± 0.077 -2.944 ± 0.291
PM Dec (mas/yr) -4.949 ± 0.055 -2.676 ± 0.209
A.E.N. (mas) 0.300 ± 7.903 0.657 ± 1.936

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.464 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 13.550 ± 0.042
H 12.726 ± 0.047
K 12.479 ± 0.037
W1 12.375 ± 0.018
W2 12.480 ± 0.015
W3 11.916 ± 0.374
W4 8.183 ± --
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.