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Doubles in session


Current system
20448-3653
UC 4278


Nearby doubles
40' : 20478-3636
LWR 17

46' : 20457-3736
HJ 5216

46' : 20442-3607
UC 4273

70' : 20502-3719
BRT1813

71' : 20506-3645
B 2893

83' : 20436-3532
HJ 5215

85' : 20381-3627
KPP3107

90' : 20516-3618
B 998

96' : 20369-3713
KPP1356

98' : 20480-3523
B 2892

98' : 20506-3545
TDT2573

102' : 20364-3706
B 2888

102' : 20501-3534
HDS2969

103' : 20452-3510
SEE 428

105' : 20437-3509
KPP 941

110' : 20539-3658
B 507

114' : 20542-3714
BRT1815

117' : 20521-3810
SEE 429

124' : 20518-3523
KPP1661

125' : 20419-3853
TOI2247

125' : 20503-3839
B 503

130' : 20458-3443
HJ 5219

131' : 20361-3814
HJ 5208

132' : 20521-3517
RST3270

133' : 20338-3643
HDS2939

134' : 20435-3905
TDT2501



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20448-3653 UC 4278

 
 
20h 44m 47.13s -36° 52' 32.9" P.A. 250.00 sep 22.0 mag 15.90,16.00
 
 
Coord 2000 20448-3653 Discov num UC 4278 Comp Coord arcsec 2000 20 44 47.13 -36 52 32.9
Date first 1998 Date last 2015 Obs 6
Pa first 250 Pa last 250.4 P.A. Now (θ) 250.4°
Sep first 22.2 Sep last 22.034 Sep. Now (ρ) 22.034"
Mag pri 15.90 Mag sec 16.00 delta mag (ΔM) 0.1 Spectral class
Pri motion ra +046 Sec motion ra +048
Pri motion dec -027 Sec motion dec -028
Notes V R (Proper motion indicates physical, Red magnitudes)
rPM=0.04 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium Gaia DR2 6778303062834718464
 
 
WDS 20448-3653 UC 4278 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
UC USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4) ...................
UC_2013a Eu j Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G., 2013AJ....145...44Z
UC_2013a & Zacharias, M.I. (UCAC4 Catalog)
UC_2013a AJ 145, 44, 2013
UC_2013b Eu j Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D. 2013AJ....146...76H
UC_2013b AJ 146, 76, 2013 (UC 301 - 5058)
UC_2013b (Relative astrometry is derived from individual measurements, not precessed means.
UC_2013b UCAC aperture magnitudes are listed, unless the duplicity flag indicates a blended
UC_2013b image (a flag value of 30 or higher). Model fit magnitudes are given for both
UC_2013b components if either has such a flag. Model fit magnitudes are indicated by the
UC_2013b letter "f" following the filter information.
UC_2013b APASS photometry extracted from UCAC4 catalog is listed under reference AAV2012.
UC_2013b Due to aperture method used, APASS photometry is only included for pairs wider
UC_2013b than 10" (Henden, private comm.) Photometry for pairs wider than 10" which showed
UC_2013b identical values for both components in all filters were removed, as well.
UC_2015 Eu - Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C., 2015AJ....150..101Z
UC_2015 DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C.,
UC_2015 Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G.
UC_2015 AJ 150, 101, 2015
UC_9999 Eu - temporary UCAC files ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20448-3653 UC 4278 2000 2 250 22.0 15.90 16.00 V 204447.13-365232.9
20448-3653 UC 4278 2010 4 250 22.0 15.90 16.00 V R 204447.13-365232.9
20448-3653 UC 4278 2015 5 251 22.0 15.90 16.00 V R 204447.13-365232.9

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 20448-3653 UC 4278 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20448-3653 UC 4278 : MEASURES
 
 
No records found.

 
 
WDS 20448-3653 : VIRTUAL EYEPIECE
 
 

20448-3653 UC 4278A mag 15.9 20448-3653 UC 4278B sep 18.2 P.A. 246.00 mag 16 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20448-3653 : ALADIN DSS IMAGE @ 20h 44m 47.13s -36° 52' 32.9"
 
 
 
 
WDS 20448-3653 UC 4278 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20448-3653 UC 4278 distance=0' 20478-3636 LWR 17 distance=40' 20457-3736 HJ 5216 distance=46' 20442-3607 UC 4273 distance=46' 20502-3719 BRT1813 distance=70' 20506-3645 B 2893 distance=71' 20436-3532 HJ 5215 distance=83' 20381-3627 KPP3107 distance=85' 20516-3618 B 998 distance=90' 20369-3713 KPP1356 distance=96' 20480-3523 B 2892 distance=98' 20506-3545 TDT2573 distance=98' 20364-3706 B 2888 distance=102' 20501-3534 HDS2969 distance=102' 20452-3510 SEE 428 distance=103' 20437-3509 KPP 941 distance=105' 20539-3658 B 507 distance=110' 20542-3714 BRT1815 distance=114' 20521-3810 SEE 429 distance=117' 20518-3523 KPP1661 distance=124' 20419-3853 TOI2247 distance=125' 20503-3839 B 503 distance=125' 20458-3443 HJ 5219 distance=130' 20361-3814 HJ 5208 distance=131' 20521-3517 RST3270 distance=132' 20338-3643 HDS2939 distance=133' 20435-3905 TDT2501 distance=134' 20532-3521 BRT1814 distance=137' 20436-3912 TDT2502 distance=141' 20442-3914 WSP 7AB distance=142' 20442-3914 WSP 7AC distance=142' 20530-3836 TOI 154 distance=143' 20390-3445 BRT1811 distance=146' 20362-3506 SKF1246 distance=149' 20525-3451 NSN 490 distance=154' 20570-3748 NSN 489 distance=157' 20318-3723 RST3262 distance=159' 20497-3921 B 502 distance=160' 20582-3711 WIS 345 distance=162' 20576-3745 B 2488 distance=163' 20518-3434 B 504 distance=164' 20579-3743 HJ 5236 distance=164' 20562-3828 TDT2645AB distance=166' 20318-3558 RSS 551 distance=167' 20584-3735 SKF1251 distance=168' 20521-3428 B 999 distance=171' 20433-3945 WG 262 distance=173' 20571-3526 B 510 distance=173' 20401-3920 SEE 422 distance=174' 20583-3548 WSP 133AB distance=176' 20583-3548 WSP 133AC distance=176' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 20448-3653 UC 4278 250 22.0
Show 20478-3636 LWR 17 20 9.0 40
Show 20457-3736 HJ 5216 22 15.6 46
Show 20442-3607 UC 4273 22 17.6 46
Show 20502-3719 BRT1813 296 5.4 70
Show 20506-3645 B 2893 297 9.7 71
Show 20436-3532 HJ 5215 183 22.8 83
Show 20381-3627 KPP3107 325 6.6 85
Show 20516-3618 B 998 288 0.5 90
Show 20369-3713 KPP1356 244 10.2 96
Show 20480-3523 B 2892 104 8.1 98
Show 20506-3545 TDT2573 74 0.4 98
Show 20364-3706 B 2888 259 13.3 102
Show 20501-3534 HDS2969 174 0.1 102
Show 20452-3510 SEE 428 188 4.4 103
Show 20437-3509 KPP 941 156 7.7 105
Show 20539-3658 B 507 215 0.5 110
Show 20542-3714 BRT1815 207 4.2 114
Show 20521-3810 SEE 429 179 3.4 117
Show 20518-3523 KPP1661 42 12.8 124
Show 20419-3853 TOI2247 347 0.3 125
Show 20503-3839 B 503 116 2.5 125
Show 20458-3443 HJ 5219 323 8.5 130
Show 20361-3814 HJ 5208 277 9.2 131
Show 20521-3517 RST3270 338 2.5 132
Show 20338-3643 HDS2939 161 0.3 133
Show 20435-3905 TDT2501 52 0.5 134
Show 20532-3521 BRT1814 258 4.0 137
Show 20436-3912 TDT2502 230 0.7 141
Show 20442-3914 WSP 7 AB 229 4.5 142
Show 20442-3914 WSP 7 AC 137 14.3 142
Show 20530-3836 TOI 154 203 0.2 143
Show 20390-3445 BRT1811 277 2.4 146
Show 20362-3506 SKF1246 169 21.8 149
Show 20525-3451 NSN 490 73 2.0 154
Show 20570-3748 NSN 489 348 2.7 157
Show 20318-3723 RST3262 67 3.4 159
Show 20497-3921 B 502 113 1.3 160
Show 20582-3711 WIS 345 7 35.3 162
Show 20576-3745 B 2488 226 2.4 163
Show 20518-3434 B 504 38 2.3 164
Show 20579-3743 HJ 5236 308 5.9 164
Show 20562-3828 TDT2645 AB 241 0.7 166
Show 20318-3558 RSS 551 175 15.4 167
Show 20584-3735 SKF1251 217 148.1 168
Show 20521-3428 B 999 328 1.3 171
Show 20433-3945 WG 262 199 3.3 173
Show 20571-3526 B 510 327 3.4 173
Show 20401-3920 SEE 422 242 20.9 174
Show 20583-3548 WSP 133 AB 212 2.4 176
Show 20583-3548 WSP 133 AC 158 16.3 176

 
 
WDS 20448-3653 : COMPONENTS
 
 
  A
B pa=246.0°
sep=18.18"
 
 
20448-3653 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204447.13-365232.9 Mag 15.9 PmRA 46.00
PmDE -27.0
 
 
20448-3653 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204445.75-365240.3 Mag 16 PmRA 48.00
PmDE -28.0 Calc delta mag 0.1 Calc coord yes