20154+1538 CHE 243 AC

 
 
20h 15m 23.34s +15° 38' 15.3" P.A. 205.00 sep 26.6 mag 10.91,13.52
 
 
Coord 2000 20154+1538 Discov num CHE 243 Comp AC Coord arcsec 2000 20 15 23.34 +15 38 15.3
Date first 1910 Date last 2015 Obs 11
Pa first 205 Pa last 205 P.A. Now (θ) 205°
Sep first 26.8 Sep last 26.617 Sep. Now (ρ) 26.617"
Mag pri 10.91 Mag sec 13.52 delta mag (ΔM) 2.61 Spectral class
Pri motion ra -002 Sec motion ra +009
Pri motion dec -004 Sec motion dec -029
Notes
rPM=0.9
This double is not physical.
 
 
20154+1538 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 15 23 +15 38 15 CHE 243 AB 2015 11 222 24.0 10.91 13.52 2.61
Show 20 15 23 +15 38 15 CHE 243 AC 2015 11 205 26.6 10.91 13.52 2.61 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Tycho2 1618-01401-1 Gaia DR2 1808425396221181184 HD 355245
 
 
WDS 20154+1538 CHE 243 AC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Che1908 Pa - Chevalier, Stanislas .
Che1908 Shanghai Obs. Zo-Se 4, 60, 1908 (corrections described in Bko2011c and Hrt2012b)
Che1909 Pa - Chevalier, Stanislas .
Che1909 Shanghai Obs. Zo-Se 5, 86, 1909 (corrections are described in Hrt2012b)
Che1910 Ma j Chevalier, Stanislas & Tsang Ziang-seng .
Che1910 +Pa Shanghai Obs. Zo-Se 6, O5, 1910 (corrections are described in Hrt2012b)
Che1911 Ma - Chevalier, Stanislas .
Che1911 +Pa Shanghai Obs. Zo-Se 7, B1, 1911 (corrections are described in Hrt2012b)
Che1925 Pa - Chevalier, Stanislas 1925JO......8...65G
Che1925 J. Obs. 8, 65, 1925
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20154+1538 CHE 243 AC 2002 3 205 26.6 9.22 11.50 D 201523.34+153815.9
20154+1538 CHE 243 AC 2008 4 203 26.9 9.22 11.50 D 201523.34+153815.9
20154+1538 CHE 243 AC 2015 7 205 26.6 10.91 13.52 201523.34+153815.3

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WDS 20154+1538 CHE 243 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20154+1538 CHE 243 AC : MEASURES
 
 
No records found.

 
 
WDS 20154+1538 : VIRTUAL EYEPIECE
 
 

20154+1538 CHE 243A mag 10.91 20154+1538 CHE 243B sep 23.6 P.A. 220.50 mag 13.52 20154+1538 CHE 243C sep 26.4 P.A. 204.20 mag 13.52 virtual eyepiece
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Radius:
Components only
 
 
WDS 20154+1538 : ALADIN DSS IMAGE @ 20h 15m 23.34s +15° 38' 15.3"
 
 
 
 
WDS 20154+1538 CHE 243 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20154+1538  CHE 243AB distance=1' 20154+1538  CHE 243AC distance=1' 20153+1535  CHE 242 distance=3' 20157+1537  CHE 247 distance=5' 20157+1534  BKO 547 distance=7' 20158+1536  BKO 551 distance=7' 20159+1535  CHE 252 distance=8' 20161+1537  CHE 255 distance=11' 20156+1527  BKO 546 distance=12' 20162+1535  CHE 256 distance=12' 20156+1526  HDS2887AB distance=13' 20156+1526  CHE 246AC distance=13' 20156+1526  CVP   1AD distance=13' 20162+1534  CHE 257 distance=13' 20163+1538  CHE 261AB distance=13' 20163+1538  CHE 261AC distance=13' 20145+1541  CHE 231 distance=14' 20151+1552  BKO 543 distance=14' 20144+1533  CHE 229 distance=16' 20161+1552  BKO 557 distance=18' 20151+1555  CHE 241 distance=18' 20161+1553  CHE 254AB distance=19' 20161+1553  BKO 556AC distance=19' 20157+1520  CHE 248 distance=19' 20160+1521  CHE 253 distance=19' 20168+1543  CHE 266 distance=22' 20145+1555  CHE 230AB distance=22' 20145+1555  BKO 542BC distance=22' 20139+1529  CHE 220 distance=24' 20141+1553  BPM2068 distance=24' 20170+1538  CHE 269 distance=24' 20139+1549  CHE 219 distance=25' 20171+1536  CHE 272 distance=25' 20146+1600  CHE 233 distance=25' 20136+1537  BKO 535BC distance=26' 20147+1602  CHE 236 distance=26' 20136+1537  CHE 215AB distance=27' 20168+1523  CHE 267 distance=27' 20165+1601  BKO 559 distance=28' 20148+1605  CHE 238 distance=29' 20165+1602  BKO 558 distance=29' 20157+1509  BKO 548 distance=30' 20172+1553  CHE 273AB distance=30' 20158+1510  BKO 552 distance=30' 20134+1536  BKO 534 distance=30' 20172+1553  BKO 560BC distance=30' 20160+1510  BKO 555 distance=30' 20157+1508  CHE 249AB distance=30' 20157+1508  BKO 549AC distance=30' 20166+1603  CHE 264 distance=31' 20135+1555  CHE 213 distance=32' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 20154+1538 CHE 243 AB 222 24.0 1
Show 20154+1538 CHE 243 AC 205 26.6 1
Show 20153+1535 CHE 242 358 13.8 3
Show 20157+1537 CHE 247 4.6 5
Show 20157+1534 BKO 547 91 4.4 7
Show 20158+1536 BKO 551 62 4.9 7
Show 20159+1535 CHE 252 304 37.5 8
Show 20161+1537 CHE 255 216 24.6 11
Show 20156+1527 BKO 546 106 7.1 12
Show 20162+1535 CHE 256 48 27.3 12
Show 20156+1526 HDS2887 AB 244 4.7 13
Show 20156+1526 CHE 246 AC 87 15.9 13
Show 20156+1526 CVP 1 AD 340 39.7 13
Show 20162+1534 CHE 257 38 29.0 13
Show 20163+1538 CHE 261 AB 41 18.3 13
Show 20163+1538 CHE 261 AC 111 23.8 13
Show 20145+1541 CHE 231 266 14.6 14
Show 20151+1552 BKO 543 325 6.4 14
Show 20144+1533 CHE 229 262 17.5 16
Show 20161+1552 BKO 557 347 5.6 18
Show 20151+1555 CHE 241 49 21.3 18
Show 20161+1553 CHE 254 AB 133 26.6 19
Show 20161+1553 BKO 556 AC 313 10.2 19
Show 20157+1520 CHE 248 322 32.0 19
Show 20160+1521 CHE 253 324 14.4 19
Show 20168+1543 CHE 266 51 36.5 22
Show 20145+1555 CHE 230 AB 253 20.5 22
Show 20145+1555 BKO 542 BC 179 7.9 22
Show 20139+1529 CHE 220 42 37.3 24
Show 20141+1553 BPM2068 355 49.0 24
Show 20170+1538 CHE 269 285 26.9 24
Show 20139+1549 CHE 219 60 10.6 25
Show 20171+1536 CHE 272 104 17.4 25
Show 20146+1600 CHE 233 269 15.7 25
Show 20136+1537 BKO 535 BC 325 5.5 26
Show 20147+1602 CHE 236 291 21.4 26
Show 20136+1537 CHE 215 AB 95 32.4 27
Show 20168+1523 CHE 267 18 36.5 27
Show 20165+1601 BKO 559 36 4.8 28
Show 20148+1605 CHE 238 303 24.2 29
Show 20165+1602 BKO 558 137 6.2 29
Show 20157+1509 BKO 548 65 2.7 30
Show 20172+1553 CHE 273 AB 94 26.8 30
Show 20158+1510 BKO 552 64 3.6 30
Show 20134+1536 BKO 534 254 6.6 30
Show 20172+1553 BKO 560 BC 199 1.4 30
Show 20160+1510 BKO 555 202 4.6 30
Show 20157+1508 CHE 249 AB 349 22.6 30
Show 20157+1508 BKO 549 AC 111 4.8 30
Show 20166+1603 CHE 264 35 28.3 31
Show 20135+1555 CHE 213 34 22.8 32

 
 
WDS 20154+1538 : COMPONENTS
 
 
  A B
B pa=220.5°
sep=23.64"
 
C pa=204.2°
sep=26.44"
pa=143.6°
sep=7.64"
 
 
20154+1538 A
 
 
Coord arcsec 2000 201523.34+153815.3 Mag 10.91 PmRA -2.00 PmDE -4.0
Tycho2 1618-01401-1 HD 355245
Tycho2
Tycho2 1618-01401-1 Pflag RAmdeg 303.84726257 DEmdeg 15.63761358
PmRA -1.2 PmDE -5.3 E RAmdeg 35 E DEmdeg 31
E pmRA 1.6 E pmDE 1.5 EpRAm 1983.97 EpDEm 1981.41
Num 4 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.2
Q pmDE 1.3 BTmag 11.247 E BTmag 0.065 VTmag 10.905
E VTmag 0.072 Prox 999 TYC T HIP
CCDM RAdeg 303.84726972 DEdeg 15.63761583 EpRA 1990 1.61
EpDE 1990 1.45 E RAdeg 39.8 E DEdeg 44.9 Posflg
Corr -0.1
 
 
20154+1538 B
 
 
Coord arcsec 2000 201522.28+153757.3 Mag 13.52 PmRA -18.00 PmDE 11.0
Calc delta mag 2.61 Calc coord yes
 
 
20154+1538 C
 
 
Coord arcsec 2000 201522.59+153751.2 Mag 13.52 PmRA 9.00 PmDE -29.0
Calc delta mag 2.61 Calc coord yes