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Doubles in session


Current system
20157+1520
CHE 248


Nearby doubles
5' : 20160+1521
CHE 253

7' : 20156+1526
HDS2887AB

7' : 20156+1527
BKO 546

11' : 20158+1510
BKO 552

12' : 20157+1509
BKO 548

12' : 20160+1510
BKO 555

12' : 20157+1508
CHE 249AB

15' : 20157+1534
BKO 547

15' : 20162+1507
CHE 258

16' : 20159+1505
BKO 553

16' : 20159+1535
CHE 252

16' : 20162+1535
CHE 256

17' : 20162+1534
CHE 257

17' : 20158+1536
BKO 551

17' : 20168+1523
CHE 267

17' : 20153+1535
CHE 242

17' : 20167+1513
CHE 265

17' : 20162+1504
CHE 259

18' : 20157+1537
CHE 247

18' : 20155+1502
SMA 114

18' : 20161+1537
CHE 255

19' : 20154+1538
CHE 243AB

19' : 20150+1504
CHE 240

20' : 20163+1538
CHE 261AB

22' : 20164+1500
CHE 262

23' : 20172+1515
CHE 274AB



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

20157+1520 CHE 248

 
 
20h 15m 44.47s +15° 20' 17.0" P.A. 322.00 sep 32.0 mag 11.55,13.88
 
 
Coord 2000 20157+1520 Discov num CHE 248 Comp Coord arcsec 2000 20 15 44.47 +15 20 17.0
Date first 1910 Date last 2015 Obs 11
Pa first 317 Pa last 321.8 P.A. Now (θ) 321.8°
Sep first 30.6 Sep last 32.042 Sep. Now (ρ) 32.042"
Mag pri 11.55 Mag sec 13.88 delta mag (ΔM) 2.33 Spectral class
Pri motion ra -010 Sec motion ra +013
Pri motion dec -026 Sec motion dec +005
Notes
rPM=1.386
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1808311287531342464
 
 
WDS 20157+1520 CHE 248 : 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
20157+1520 CHE 248 2006 3 322 31.9 9.72   D 201544.47+152017.0
20157+1520 CHE 248 2008 4 322 32.0 9.72   D 201544.47+152017.0
20157+1520 CHE 248 2010 6 322 31.9 11.55 13.88 201544.47+152017.0
20157+1520 CHE 248 2015 7 322 32.0 11.55 13.88 201544.47+152017.0

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

 
 
WDS 20157+1520 CHE 248 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20157+1520 CHE 248 : MEASURES
 
 
No records found.

 
 
WDS 20157+1520 : VIRTUAL EYEPIECE
 
 

20157+1520 CHE 248A mag 11.55 20157+1520 CHE 248B sep 31.6 P.A. 322.80 mag 13.88 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20157+1520 : ALADIN DSS IMAGE @ 20h 15m 44.47s +15° 20' 17.0"
 
 
 
 
WDS 20157+1520 CHE 248 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20157+1520 CHE 248 distance=0' 20160+1521 CHE 253 distance=5' 20156+1526 HDS2887AB distance=7' 20156+1526 CHE 246AC distance=7' 20156+1526 CVP 1AD distance=7' 20156+1527 BKO 546 distance=7' 20158+1510 BKO 552 distance=11' 20157+1509 BKO 548 distance=12' 20160+1510 BKO 555 distance=12' 20157+1508 CHE 249AB distance=12' 20157+1508 BKO 549AC distance=12' 20157+1534 BKO 547 distance=15' 20162+1507 CHE 258 distance=15' 20159+1505 BKO 553 distance=16' 20159+1535 CHE 252 distance=16' 20162+1535 CHE 256 distance=16' 20162+1534 CHE 257 distance=17' 20158+1536 BKO 551 distance=17' 20168+1523 CHE 267 distance=17' 20153+1535 CHE 242 distance=17' 20167+1513 CHE 265 distance=17' 20162+1504 CHE 259 distance=17' 20157+1537 CHE 247 distance=18' 20155+1502 SMA 114 distance=18' 20161+1537 CHE 255 distance=18' 20154+1538 CHE 243AB distance=19' 20154+1538 CHE 243AC distance=19' 20150+1504 CHE 240 distance=19' 20163+1538 CHE 261AB distance=20' 20163+1538 CHE 261AC distance=20' 20164+1500 CHE 262 distance=22' 20172+1515 CHE 274AB distance=23' 20172+1515 DAM 360AC distance=23' 20169+1506 CHE 268AB distance=23' 20169+1506 ABH 136AD distance=23' 20169+1506 ABH 136AE distance=23' 20169+1506 ABH 136AF distance=23' 20169+1506 ABH 136AG distance=23' 20169+1506 ABH 136AH distance=23' 20169+1506 ABH 136AI distance=23' 20169+1506 ABH 136AJ distance=23' 20169+1506 ABH 136AK distance=23' 20169+1506 ABH 136AL distance=23' 20169+1506 CHE 268AC distance=23' 20169+1506 CHE 268BC distance=23' 20144+1533 CHE 229 distance=23' 20154+1457 CHE 244 distance=24' 20157+1457 BKO 550 distance=24' 20159+1457 BKO 554 distance=24' 20171+1536 CHE 272 distance=25' 20143+1507 CHE 225AB 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+1520 CHE 248 322 32.0
Show 20160+1521 CHE 253 324 14.4 5
Show 20156+1526 HDS2887 AB 244 4.7 7
Show 20156+1526 CHE 246 AC 87 15.9 7
Show 20156+1526 CVP 1 AD 340 39.7 7
Show 20156+1527 BKO 546 106 7.1 7
Show 20158+1510 BKO 552 64 3.6 11
Show 20157+1509 BKO 548 65 2.7 12
Show 20160+1510 BKO 555 202 4.6 12
Show 20157+1508 CHE 249 AB 349 22.6 12
Show 20157+1508 BKO 549 AC 111 4.8 12
Show 20157+1534 BKO 547 91 4.4 15
Show 20162+1507 CHE 258 230 16.0 15
Show 20159+1505 BKO 553 111 5.2 16
Show 20159+1535 CHE 252 304 37.5 16
Show 20162+1535 CHE 256 48 27.3 16
Show 20162+1534 CHE 257 38 29.0 17
Show 20158+1536 BKO 551 62 4.9 17
Show 20168+1523 CHE 267 18 36.5 17
Show 20153+1535 CHE 242 358 13.8 17
Show 20167+1513 CHE 265 68 20.8 17
Show 20162+1504 CHE 259 138 16.5 17
Show 20157+1537 CHE 247 4.6 18
Show 20155+1502 SMA 114 310 5.0 18
Show 20161+1537 CHE 255 216 24.6 18
Show 20154+1538 CHE 243 AB 222 24.0 19
Show 20154+1538 CHE 243 AC 205 26.6 19
Show 20150+1504 CHE 240 179 28.4 19
Show 20163+1538 CHE 261 AB 41 18.3 20
Show 20163+1538 CHE 261 AC 111 23.8 20
Show 20164+1500 CHE 262 245 19.7 22
Show 20172+1515 CHE 274 AB 148 27.5 23
Show 20172+1515 DAM 360 AC 21 5.9 23
Show 20169+1506 CHE 268 AB 213 10.2 23
Show 20169+1506 ABH 136 AD 281 39.7 23
Show 20169+1506 ABH 136 AE 231 74.0 23
Show 20169+1506 ABH 136 AF 217 52.4 23
Show 20169+1506 ABH 136 AG 212 51.0 23
Show 20169+1506 ABH 136 AH 190 55.4 23
Show 20169+1506 ABH 136 AI 181 67.9 23
Show 20169+1506 ABH 136 AJ 57 93.0 23
Show 20169+1506 ABH 136 AK 65 103.2 23
Show 20169+1506 ABH 136 AL 64 125.3 23
Show 20169+1506 CHE 268 AC 337 21.4 23
Show 20169+1506 CHE 268 BC 354 28.4 23
Show 20144+1533 CHE 229 262 17.5 23
Show 20154+1457 CHE 244 108 13.4 24
Show 20157+1457 BKO 550 301 3.8 24
Show 20159+1457 BKO 554 145 5.8 24
Show 20171+1536 CHE 272 104 17.4 25
Show 20143+1507 CHE 225 AB 212 7.6 25

 
 
WDS 20157+1520 : COMPONENTS
 
 
  A
B pa=322.8°
sep=31.61"
 
 
20157+1520 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 201544.47+152017.0 Mag 11.55 PmRA -10.00
PmDE -26.0
 
 
20157+1520 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201543.15+152042.2 Mag 13.88 PmRA 13.00
PmDE 5.0 Calc delta mag 2.33 Calc coord yes