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Current system
20157+1508
CHE 249 AB


Nearby doubles
1' : 20157+1509
BKO 548

2' : 20158+1510
BKO 552

5' : 20159+1505
BKO 553

5' : 20160+1510
BKO 555

6' : 20155+1502
SMA 114

7' : 20162+1504
CHE 259

8' : 20162+1507
CHE 258

11' : 20150+1504
CHE 240

12' : 20157+1520
CHE 248

12' : 20157+1457
BKO 550

12' : 20154+1457
CHE 244

13' : 20159+1457
BKO 554

14' : 20164+1500
CHE 262

14' : 20158+1455
CHE 251

14' : 20160+1521
CHE 253

14' : 20155+1455
BKO 544

16' : 20157+1453
CHE 250

16' : 20167+1513
CHE 265

16' : 20155+1452
CHE 245AB

17' : 20167+1459
BPM2086

18' : 20146+1503
CHE 234

18' : 20156+1526
HDS2887AB

18' : 20145+1502
TOB 309

19' : 20169+1506
CHE 268AB

19' : 20156+1527
BKO 546

19' : 20145+1503
CHE 232



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20157+1508 CHE 249 AB

 
 
20h 15m 42.96s +15° 08' 40.1" P.A. 349.00 sep 22.6 mag 12.54,13.85
 
 
Coord 2000 20157+1508 Discov num CHE 249 Comp AB Coord arcsec 2000 20 15 42.96 +15 08 40.1
Date first 1910 Date last 2018 Obs 6
Pa first 348 Pa last 348.6 P.A. Now (θ) 348.6°
Sep first 22.9 Sep last 22.6 Sep. Now (ρ) 22.6"
Mag pri 12.54 Mag sec 13.85 delta mag (ΔM) 1.31 Spectral class
Pri motion ra -094 Sec motion ra -035
Pri motion dec +040 Sec motion dec +012
Notes N (See Notes)
rPM=0.639
Nature of this double is uncertain.
 
 
20157+1508 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 15 43 +15 08 40 CHE 249 AB 2018 6 349 22.6 12.54 13.85 1.31 <===
Show 20 15 43 +15 08 40 BKO 549 AC 2015 4 111 4.8 12.54 15.00 2.46
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1808255040638198656
 
 
WDS 20157+1508 CHE 249 AB : NOTES
 
 
discov_num notes refcode
BKO 549 Anon. 62. Bko2009d
 
 
REFERENCES
 
 
refcode metd author reference
Bko2009d C u Berko, E. 2009JDSO....5..189B
Bko2009d JDSO 5, 189, 2009
 
 
DISCOVERER
 
 
idgroup discov author
1 CHE Chevalier, Stanislas
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20157+1508 CHE 249 AB 2008 2 348 22.9 12.54 13.85 201542.96+150840.1
20157+1508 CHE 249 AB 2015 5 348 22.8 12.54 13.85 N 201542.96+150840.1
20157+1508 CHE 249 AB 2018 6 349 22.6 12.54 13.85 N 201542.96+150840.1

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

 
 
WDS 20157+1508 CHE 249 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20157+1508 CHE 249 AB : MEASURES
 
 
No records found.

 
 
WDS 20157+1508 : VIRTUAL EYEPIECE
 
 

20157+1508 CHE 249A mag 12.54 20157+1508 CHE 249B sep 22.6 P.A. 349.00 mag 13.85 20157+1508 BKO 549C sep 4.7 P.A. 111.20 mag 15 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20157+1508 : ALADIN DSS IMAGE @ 20h 15m 42.96s +15° 08' 40.1"
 
 
 
 
WDS 20157+1508 CHE 249 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20157+1508 CHE 249AB distance=0' 20157+1509 BKO 548 distance=1' 20158+1510 BKO 552 distance=2' 20159+1505 BKO 553 distance=5' 20160+1510 BKO 555 distance=5' 20155+1502 SMA 114 distance=6' 20162+1504 CHE 259 distance=7' 20162+1507 CHE 258 distance=8' 20150+1504 CHE 240 distance=11' 20157+1520 CHE 248 distance=12' 20157+1457 BKO 550 distance=12' 20154+1457 CHE 244 distance=12' 20159+1457 BKO 554 distance=13' 20164+1500 CHE 262 distance=14' 20158+1455 CHE 251 distance=14' 20160+1521 CHE 253 distance=14' 20155+1455 BKO 544 distance=14' 20157+1453 CHE 250 distance=16' 20167+1513 CHE 265 distance=16' 20155+1452 CHE 245AB distance=16' 20155+1452 BKO 545AC distance=16' 20167+1459 BPM2086 distance=17' 20146+1503 CHE 234 distance=18' 20156+1526 HDS2887AB distance=18' 20156+1526 CHE 246AC distance=18' 20156+1526 CVP 1AD distance=18' 20145+1502 TOB 309 distance=18' 20169+1506 CHE 268BC distance=18' 20169+1506 CHE 268AB distance=19' 20169+1506 ABH 136AD distance=19' 20169+1506 ABH 136AE distance=19' 20169+1506 ABH 136AF distance=19' 20169+1506 ABH 136AG distance=19' 20169+1506 ABH 136AH distance=19' 20169+1506 ABH 136AI distance=19' 20169+1506 ABH 136AJ distance=19' 20169+1506 ABH 136AK distance=19' 20169+1506 ABH 136AL distance=19' 20169+1506 CHE 268AC distance=19' 20156+1527 BKO 546 distance=19' 20145+1503 CHE 232 distance=19' 20144+1505 BKO 541 distance=20' 20143+1507 CHE 225AB distance=21' 20143+1507 BKO 539AC distance=21' 20151+1450 BPM2077 distance=22' 20168+1523 CHE 267 distance=22' 20142+1508 BKO 538 distance=23' 20146+1452 CHE 235 distance=23' 20172+1515 CHE 274AB distance=23' 20172+1515 DAM 360AC distance=23' 20140+1503 CHE 222 distance=25' 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 20157+1508 CHE 249 AB 349 22.6
Show 20157+1508 BKO 549 AC 111 4.8
Show 20157+1509 BKO 548 65 2.7 1
Show 20158+1510 BKO 552 64 3.6 2
Show 20159+1505 BKO 553 111 5.2 5
Show 20160+1510 BKO 555 202 4.6 5
Show 20155+1502 SMA 114 310 5.0 6
Show 20162+1504 CHE 259 138 16.5 7
Show 20162+1507 CHE 258 230 16.0 8
Show 20150+1504 CHE 240 179 28.4 11
Show 20157+1520 CHE 248 322 32.0 12
Show 20157+1457 BKO 550 301 3.8 12
Show 20154+1457 CHE 244 108 13.4 12
Show 20159+1457 BKO 554 145 5.8 13
Show 20164+1500 CHE 262 245 19.7 14
Show 20158+1455 CHE 251 61 28.0 14
Show 20160+1521 CHE 253 324 14.4 14
Show 20155+1455 BKO 544 29 2.6 14
Show 20157+1453 CHE 250 145 20.7 16
Show 20167+1513 CHE 265 68 20.8 16
Show 20155+1452 CHE 245 AB 286 17.9 16
Show 20155+1452 BKO 545 AC 1 6.7 16
Show 20167+1459 BPM2086 286 62.5 17
Show 20146+1503 CHE 234 270 18.4 18
Show 20156+1526 HDS2887 AB 244 4.7 18
Show 20156+1526 CHE 246 AC 87 15.9 18
Show 20156+1526 CVP 1 AD 340 39.7 18
Show 20145+1502 TOB 309 182 11.6 18
Show 20169+1506 CHE 268 BC 354 28.4 18
Show 20169+1506 CHE 268 AB 213 10.2 19
Show 20169+1506 ABH 136 AD 281 39.7 19
Show 20169+1506 ABH 136 AE 231 74.0 19
Show 20169+1506 ABH 136 AF 217 52.4 19
Show 20169+1506 ABH 136 AG 212 51.0 19
Show 20169+1506 ABH 136 AH 190 55.4 19
Show 20169+1506 ABH 136 AI 181 67.9 19
Show 20169+1506 ABH 136 AJ 57 93.0 19
Show 20169+1506 ABH 136 AK 65 103.2 19
Show 20169+1506 ABH 136 AL 64 125.3 19
Show 20169+1506 CHE 268 AC 337 21.4 19
Show 20156+1527 BKO 546 106 7.1 19
Show 20145+1503 CHE 232 333 9.5 19
Show 20144+1505 BKO 541 136 5.9 20
Show 20143+1507 CHE 225 AB 212 7.6 21
Show 20143+1507 BKO 539 AC 276 4.5 21
Show 20151+1450 BPM2077 45 67.3 22
Show 20168+1523 CHE 267 18 36.5 22
Show 20142+1508 BKO 538 127 6.2 23
Show 20146+1452 CHE 235 29 11.6 23
Show 20172+1515 CHE 274 AB 148 27.5 23
Show 20172+1515 DAM 360 AC 21 5.9 23

 
 
WDS 20157+1508 : COMPONENTS
 
 
  A B
B pa=349.0°
sep=22.57"
 
C pa=111.2°
sep=4.66"
pa=160.0°
sep=25.36"
 
 
20157+1508 A
 
 
Coord arcsec 2000 201542.96+150840.1 Mag 12.54 PmRA -94.00 PmDE 40.0
 
 
20157+1508 B
 
 
Coord arcsec 2000 201542.66+150902.3 Mag 13.85 PmRA -35.00 PmDE 12.0
Calc delta mag 1.31 Calc coord yes
 
 
20157+1508 C
 
 
Coord arcsec 2000 201543.26+150838.4 Mag 15 Calc delta mag 2.46 Calc coord yes