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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821042 (SMSS J172717.31-205031.1)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.8221
Dec (deg)-20.8420
Galactic lon. (deg)4.6342
Galactic lat. (deg)7.8363
E(B-V) (SFD98) (mag)0.983
E(B-V) (GNILC) (mag)0.971 ± 0.050
Nearest DR4 source 179821036 (8.8 arcs away)
2nd-nearest DR4 source 179821041 (14.8 arcs away)
Times observed21
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. 19.407 ± 0.036 18.495 ± 0.030 17.697 ± 0.023 17.269 ± 0.016
Petrosian mag. 19.578 ± 0.078 18.598 ± 0.176 17.715 ± 0.037 17.299 ± 0.041

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 20190505165725 19.352 ± 0.05 0,0 100 2
g 20190506165109 19.456 ± 0.056 0,0 100 2
g 20190507143127 19.401 ± 0.051 0,0 100 2
r 20140729111131 18.167 ± 0.109 0,0 5 2
r 20190505165926 18.417 ± 0.046 16,0 100 2
r 20190506165309 18.473 ± 0.047 0,0 100 2
r 20190507143327 18.476 ± 0.047 0,0 100 2
i 20140722114229 17.589 ± 0.089 0,0 10 2
i 20140729111202 17.777 ± 0.100 0,0 10 2
i 20150901084153 17.657 ± 0.047 0,0 100 2
i 20150901084554 17.653 ± 0.043 0,0 100 2
i 20160420170134 17.819 ± 0.131 0,0 10 2
i 20190419150817 17.857 ± 0.068 1040,0 100 2
i 20190505170526 17.675 ± 0.045 0,0 100 2
i 20190508164002 17.664 ± 0.047 0,0 100 2
z 20140722114259 17.165 ± 0.079 0,0 20 2
z 20140729111235 17.136 ± 0.077 0,0 20 2
z 20150901084353 17.247 ± 0.053 0,0 100 2
z 20150901084754 17.309 ± 0.054 0,0 100 2
z 20160420170204 17.365 ± 0.112 0,0 20 2
z 20190419151018 17.337 ± 0.067 17,0 100 2
z 20190505170726 17.174 ± 0.052 0,0 100 2
z 20190508164202 17.196 ± 0.052 0,0 100 2
z 20200513183957 17.241 ± 0.067 0,0 100 2
z 20210407183658 17.382 ± 0.128 16,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.27 2.17
GAIA source ID 4121011293628935424 4121011297960369536
Bp mag. 19.312 --
G mag. 18.359 19.982
Rp mag. 17.35 --
Bp/Rp excess 1.367 --
Parallax (mas) 0.399 ± 0.155 -0.094 ± 0.503
PM RA (mas/yr) -2.635 ± 0.186 -1.153 ± 0.612
PM Dec (mas/yr) -5.463 ± 0.128 -5.572 ± 0.433
A.E.N. (mas) 0.0 ± 0.0 0.832 ± 0.552

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.764 ± 0.010
r 18.539 ± 0.003
i 17.816 ± 0.006
z 17.467 ± 0.006
Y -- ± --
J 15.887 ± 0.010
H -- ± --
K 15.148 ± 0.018
W1 15.452 ± 0.029
W2 15.376 ± 0.056
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.