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Doubles in session


Current system
20027+3340
DAM 7 AC


Nearby doubles
4' : 20025+3341
HO 117AB

6' : 20031+3343
SEI 818

9' : 20027+3349
SEI 815AB

11' : 20031+3350
SEI 819

12' : 20022+3332
SEI 801

12' : 20026+3352
BKO 521AB

15' : 20023+3354
SEI 804

16' : 20027+3355
BKO 522AB

18' : 20037+3327
TDT1942

18' : 20039+3349
SEI 833

18' : 20032+3357
SEI 821

19' : 20039+3329
TDT1945

19' : 20013+3346
SEI 789

21' : 20024+3320
SEI 803

22' : 20010+3346
SEI 785

24' : 20033+3403
SEI 822

24' : 20016+3358
SEI 794

25' : 20008+3337
SEI 784

28' : 20049+3334
ES 2350AB

31' : 20053+3343
SEI 844

32' : 20048+3359
SEI 841

33' : 20020+3411
SEI 800

34' : 20021+3308
SEI 797

35' : 20040+3309
SEI 832

37' : 20030+3416
BKO 524

38' : 20057+3329
ES 2351



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

20027+3340 DAM 7 AC

 
 
20h 02m 46.30s +33° 39' 58.0" P.A. 308.00 sep 60.7 mag 9.59,12.21 Sp G
 
 
Coord 2000 20027+3340 Discov num DAM   7 Comp AC Coord arcsec 2000 20 02 46.30 +33 39 58.0
Date first 1934 Date last 2015 Obs 5
Pa first 305 Pa last 307.9 P.A. Now (θ) 307.9°
Sep first 60.6 Sep last 60.703 Sep. Now (ρ) 60.703"
Mag pri 9.59 Mag sec 12.21 delta mag (ΔM) 2.62 Spectral class G (yellow)
Pri motion ra -007 Sec motion ra +012
Pri motion dec -025 Sec motion dec -008
Notes
rPM=0.982
This double is not physical.
 
 
20027+3340 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 02 46 +33 39 58 HO 118 AB 2016 17 28 3.0 10.00 11.90 1.90
Show 20 02 46 +33 39 58 DAM 7 AC 2015 5 308 60.7 9.59 12.21 2.62 <===
Show 20 02 46 +33 39 58 HO 118 AE 2016 4 354 5.6 10.00 14.40 4.40
Show 20 02 42 +33 40 35 WAK 13 CD 2015 4 6 2.9 12.20 14.50 2.30
Quintuple system
5 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Gaia DR2 2058244436768873600
 
 
WDS 20027+3340 DAM 7 AC : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
DAM Damm, F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
20027+3340 DAM 7 AC 2000 1 308 60.7 10.00 10.00 200246.30+333958.0
20027+3340 DAM 7 AC 2002 5 308 60.7 10.00 10.00 D 200246.30+333958.0
20027+3340 DAM 7 AC 2015 5 308 60.7 9.59 12.21 G 200246.30+333958.0

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

 
 
WDS 20027+3340 DAM 7 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20027+3340 DAM 7 AC : MEASURES
 
 
No records found.

 
 
WDS 20027+3340 : VIRTUAL EYEPIECE
 
 

20027+3340 HO 118A mag 10 Sp G 20027+3340 HO 118B sep 3.0 P.A. 27.60 mag 11.9 20027+3340 WAK 13C sep 60.9 P.A. 307.30 mag 12.2 20027+3340 WAK 13D sep 62.4 P.A. 309.60 mag 14.5 20027+3340 HO 118E sep 5.6 P.A. 353.70 mag 14.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20027+3340 : ALADIN DSS IMAGE @ 20h 02m 46.30s +33° 39' 58.0"
 
 
 
 
WDS 20027+3340 DAM 7 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20027+3340 DAM 7AC distance=0' 20027+3340 WAK 13CD distance=2' 20025+3341 HO 117AB distance=4' 20025+3341 BKO 520AC distance=4' 20031+3343 SEI 818 distance=6' 20027+3349 SEI 815AB distance=9' 20027+3349 SEI 816AC distance=9' 20027+3349 BKO 523AD distance=9' 20031+3350 SEI 819 distance=11' 20022+3332 SEI 801 distance=12' 20026+3352 BKO 521AB distance=12' 20026+3352 BKO 521BC distance=13' 20023+3354 SEI 804 distance=15' 20027+3355 BKO 522DE distance=16' 20027+3355 BKO 522AB distance=16' 20027+3355 BKO 522AD distance=16' 20027+3355 BKO 522BC distance=16' 20037+3327 TDT1942 distance=18' 20039+3349 SEI 833 distance=18' 20032+3357 SEI 821 distance=18' 20039+3329 TDT1945 distance=19' 20013+3346 SEI 789 distance=19' 20024+3320 SEI 803 distance=21' 20010+3346 SEI 785 distance=22' 20033+3403 SEI 822 distance=24' 20016+3358 SEI 794 distance=24' 20008+3337 SEI 784 distance=25' 20049+3334 ES 2350AB distance=28' 20049+3334 ES 2350BC distance=28' 20053+3343 SEI 844 distance=31' 20048+3359 SEI 841 distance=32' 20020+3411 SEI 800 distance=33' 20021+3308 SEI 797 distance=34' 20040+3309 SEI 832 distance=35' 20030+3416 BKO 524 distance=37' 20057+3329 ES 2351 distance=38' 20019+3303 HO 586 distance=40' 20016+3417 SEI 793 distance=40' 20034+3420 SEI 823 distance=41' 20032+3421 SEI 820 distance=41' 20031+3421 BKO 525 distance=42' 20041+3419 SEI 834 distance=43' 19597+3359 FRT 2AB distance=43' 19597+3359 FRT 2AC distance=43' 19597+3359 FRT 2AD distance=43' 20062+3328 ES 2373AB distance=44' 20062+3328 ES 2373AC distance=44' 19596+3321 SEI 769 distance=45' 19596+3318 BEW 4 distance=45' 20053+3307 COU1806 distance=46' 20025+3427 SEI 811 distance=47' 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 20027+3340 HO 118 AB 28 3.0 0
Show 20027+3340 DAM 7 AC 308 60.7 0
Show 20027+3340 HO 118 AE 354 5.6 0
Show 20027+3340 WAK 13 CD 6 2.9 2
Show 20025+3341 HO 117 AB 314 5.2 4
Show 20025+3341 BKO 520 AC 24 6.5 4
Show 20031+3343 SEI 818 207 15.1 6
Show 20027+3349 SEI 815 AB 358 19.4 9
Show 20027+3349 SEI 816 AC 113 20.6 9
Show 20027+3349 BKO 523 AD 341 5.0 9
Show 20031+3350 SEI 819 148 22.1 11
Show 20022+3332 SEI 801 107 7.9 12
Show 20026+3352 BKO 521 AB 34 10.5 12
Show 20026+3352 BKO 521 BC 57 5.1 13
Show 20023+3354 SEI 804 270 27.4 15
Show 20027+3355 BKO 522 DE 154 4.4 16
Show 20027+3355 BKO 522 AB 340 6.8 16
Show 20027+3355 BKO 522 AD 199 10.6 16
Show 20027+3355 BKO 522 BC 15 1.9 16
Show 20037+3327 TDT1942 35 0.6 18
Show 20039+3349 SEI 833 146 6.0 18
Show 20032+3357 SEI 821 93 29.2 18
Show 20039+3329 TDT1945 114 1.3 19
Show 20013+3346 SEI 789 347 16.9 19
Show 20024+3320 SEI 803 272 22.6 21
Show 20010+3346 SEI 785 137 29.2 22
Show 20033+3403 SEI 822 212 24.3 24
Show 20016+3358 SEI 794 193 3.8 24
Show 20008+3337 SEI 784 159 23.5 25
Show 20049+3334 ES 2350 AB 224 2.4 28
Show 20049+3334 ES 2350 BC 241 4.4 28
Show 20053+3343 SEI 844 6 22.5 31
Show 20048+3359 SEI 841 307 26.7 32
Show 20020+3411 SEI 800 350 24.9 33
Show 20021+3308 SEI 797 86 25.7 34
Show 20040+3309 SEI 832 219 22.2 35
Show 20030+3416 BKO 524 62 13.9 37
Show 20057+3329 ES 2351 276 5.0 38
Show 20019+3303 HO 586 172 6.8 40
Show 20016+3417 SEI 793 27 4.0 40
Show 20034+3420 SEI 823 232 17.2 41
Show 20032+3421 SEI 820 91 10.8 41
Show 20031+3421 BKO 525 308 11.5 42
Show 20041+3419 SEI 834 135 21.9 43
Show 19597+3359 FRT 2 AB 237 6.9 43
Show 19597+3359 FRT 2 AC 311 3.0 43
Show 19597+3359 FRT 2 AD 63 7.0 43
Show 20062+3328 ES 2373 AB 104 6.1 44
Show 20062+3328 ES 2373 AC 53 12.6 44
Show 19596+3321 SEI 769 228 23.7 45
Show 19596+3318 BEW 4 203 18.0 45

 
 
WDS 20027+3340 : COMPONENTS
 
 
  A B C D
B pa=27.6°
sep=2.97"
 
C pa=307.3°
sep=60.89"
pa=304.5°
sep=60.46"
 
D pa=309.6°
sep=62.42"
pa=306.9°
sep=61.87"
pa=6.3°
sep=2.88"
 
E pa=353.7°
sep=5.57"
pa=325.6°
sep=3.52"
pa=123.3°
sep=57.19"
pa=125.8°
sep=58.55"
 
 
20027+3340 A
 
 
Coord arcsec 2000 200246.30+333958.0 Mag 10 Spectral class G (yellow) PmRA -9.00
PmDE -32.0
 
 
20027+3340 B
 
 
Coord arcsec 2000 200246.41+334000.6 Mag 11.9 Delta magnitude 1.9 Coordinate calculated yes
 
 
20027+3340 C
 
 
Coord arcsec 2000 200242.42+334034.9 Coord calc 200242.42+334034.9 Mag 12.2 PmRA 12.00
PmDE 7.0 Delta magnitude 2.2
 
 
20027+3340 D
 
 
Coord arcsec 2000 200242.45+334037.8 Mag 14.5 Delta magnitude 4.5 Coordinate calculated yes
 
 
20027+3340 E
 
 
Coord arcsec 2000 200246.25+334003.5 Mag 14.4 Delta magnitude 4.4 Coordinate calculated yes