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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179852566 (SMSS J172755.77-203727.5)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.982
Dec (deg)-20.624
Galactic lon. (deg)4.901
Galactic lat. (deg)7.829
E(B-V) (SFD98) (mag)0.860
E(B-V) (GNILC) (mag)0.782 ± 0.037
Nearest DR4 source 2268087389 (3.9 arcs away)
2nd-nearest DR4 source 179852567 (5.0 arcs away)
3rd-nearest DR4 source 179852554 (5.5 arcs away)
Times observed40
Total bad pixels1
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — 18.861 ± 0.173 17.250 ± 0.032 16.458 ± 0.018 15.806 ± 0.013 15.478 ± 0.013
Petrosian mag. — 18.677 ± 0.105 16.660 ± 0.052 16.128 ± 0.105 15.480 ± 0.101 15.243 ± 0.115

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)
v 20190505170325 19.043 ± 0.094 0,0 100 1
g 20140719114908 17.230 ± 0.054 0,0 5 2
g 20140722114132 17.310 ± 0.053 0,0 5 2
g 20160420170043 17.284 ± 0.071 16,0 5 2
g 20160420172300 17.265 ± 0.064 0,0 5 2
g 20180605124544 17.288 ± 0.059 0,0 5 2
g 20190505165725 17.254 ± 0.027 1,0 100 2
g 20190506165109 17.303 ± 0.024 3,0 100 2
g 20190822094124 17.256 ± 0.027 1,0 100 2
g 20200524153348 17.341 ± 0.085 0,0 5 3
g 20210407183532 17.295 ± 0.062 0,0 5 2
r 20140719114939 16.556 ± 0.046 0,0 5 2
r 20140722114203 16.474 ± 0.038 3,0 5 2
r 20160420170109 16.511 ± 0.045 19,0 5 2
r 20160420172325 16.524 ± 0.041 1,0 5 2
r 20190505165926 16.471 ± 0.030 3,0 100 2
r 20190506165309 16.456 ± 0.026 3,0 100 2
r 20190822094324 16.467 ± 0.029 3,0 100 2
r 20200524153415 16.436 ± 0.051 0,0 5 2
r 20210407183558 16.462 ± 0.046 0,0 5 2
i 20140719115004 15.792 ± 0.033 3,0 10 2
i 20140722114229 15.812 ± 0.033 3,0 10 2
i 20150901084153 15.817 ± 0.030 3,0 100 2
i 20160420170134 15.818 ± 0.031 19,0 10 2
i 20160420172350 15.836 ± 0.033 3,1 10 2
i 20180605124636 15.856 ± 0.040 0,0 10 2
i 20190505170526 15.813 ± 0.031 3,0 100 2
i 20190508164002 15.846 ± 0.036 1,0 100 2
i 20190509140533 15.940 ± 0.050 3,0 100 2
i 20190720124743 15.947 ± 0.061 3,0 100 2
i 20200513190610 15.934 ± 0.032 3,0 100 2
i 20200524153441 15.882 ± 0.040 0,0 10 2
i 20210407183626 15.836 ± 0.037 3,0 10 2
z 20140719115035 15.493 ± 0.035 3,0 20 2
z 20140722114259 15.498 ± 0.032 3,0 20 2
z 20150901084353 15.487 ± 0.032 3,0 100 2
z 20160420170204 15.536 ± 0.031 19,0 20 2
z 20160420172420 15.494 ± 0.030 3,0 20 2
z 20180605124707 15.529 ± 0.038 0,0 20 2
z 20190505170726 15.478 ± 0.030 3,0 100 2
z 20190508164202 15.486 ± 0.029 3,0 100 2
z 20190509140733 15.622 ± 0.053 3,0 100 2
z 20190720124943 15.636 ± 0.058 3,0 100 2
z 20200513190811 15.503 ± 0.036 1,0 100 2
z 20200524153511 15.503 ± 0.041 0,0 20 3
z 20210407183658 15.522 ± 0.036 3,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.23 3.96
GAIA source ID 4121033666183251712 4121033666146323200
Bp mag. 17.163 20.674
G mag. 16.381 20.181
Rp mag. 15.498 18.948
Bp/Rp excess 1.302 1.772
Parallax (mas) 0.577 ± 0.063 0.749 ± 0.898
PM RA (mas/yr) 1.897 ± 0.071 1.838 ± 0.979
PM Dec (mas/yr) -1.351 ± 0.051 -5.421 ± 0.722
A.E.N. (mas) 0.081 ± 0.490 0.911 ± 0.361

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.553 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 14.271 ± 0.062
H 13.769 ± 0.082
K 13.528 ± 0.070
W1 13.464 ± 0.025
W2 13.532 ± 0.023
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.