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Doubles in session


Current system
21377+0637
STFA 56 AB
3 Peg


Nearby doubles
6' : 21376+0643
STT 443AB

15' : 21368+0643
SLN 41

30' : 21386+0704
SKF2553

36' : 21399+0623
OSO 151AB

36' : 21369+0604
GWP3078

53' : 21385+0546
HJ 941

56' : 21341+0651
REE 1

60' : 21395+0544
FMR 164

61' : 21417+0625
HU 278AB

67' : 21377+0528
J 1406

68' : 21395+0534
CVR 912

69' : 21419+0708
HJ 3050

77' : 21329+0648
HJ 3033AB

78' : 21423+0715
HU 279

79' : 21364+0753
HJ 938

81' : 21423+0555
HU 280

85' : 21385+0513
BAL2981

87' : 21379+0510
SLW1245

90' : 21403+0516
SKF 484

91' : 21436+0700
HJ 3053

93' : 21404+0514
DBR 329

93' : 21361+0806
CVR1708

100' : 21319+0546
GRV 475

101' : 21441+0709
STTA222

104' : 21321+0738
UC 4486

105' : 21327+0751
HJ 937



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

21377+0637 STFA 56 AB (3 Peg)

 
 
21h 37m 43.64s +06° 37' 06.2" P.A. 349.00 sep 38.7 mag 6.18,7.50 Sp A2V dist. 145.35 pc (474.13 l.y.)
 
 
Coord 2000 21377+0637 Discov num STFA 56 Comp AB Coord arcsec 2000 21 37 43.64 +06 37 06.2
Date first 1782 Date last 2020 Obs 79
Pa first 353 Pa last 348.6 P.A. Now (θ) 348.6°
Sep first 34.7 Sep last 38.7 Sep. Now (ρ) 38.7"
Mag pri 6.18 Mag sec 7.50 delta mag (ΔM) 1.32 Spectral class A2V (white)
Pri motion ra +058 Sec motion ra +056
Pri motion dec -002 Sec motion dec -001
Notes N Z V (See Notes, Parallax indicates components are physical, Proper motion indicates physical)
rPM=0.039 (< 0.3, Physical double)
This double is physical.
 
 
21377+0637 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 3 Peg 126940 21 37 44 +06 37 06 STFA 56 AB 2020 79 349 38.7 6.18 7.50 1.32 <===
Show 126940 21 37 44 +06 37 06 STFA 56 AC 2015 6 121 85.1 6.18 13.93 7.75
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 3 Peg Constellation Pegasus SAO 126940 HIP 106781
Tycho2 0555-01661-1 Gaia DR2 2701125861831057792 HD 205811 HR 8265
GC 30270 ADS 15147 BD BD+05 4829 Flamsteed 3 Pegasi
Flamsteed name 3 Peg Distance 145.35 Distance ly 474.13
 
 
WDS 21377+0637 STFA 56 AB (3 Peg) : NOTES
 
 
discov_num notes refcode
STFA 56 3 Peg. STTA219. A is an occultation double. B is BD+05@4829.
AB: HJL 295. HJL1986
AB: H 5 98. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
HJL1986 Pa - Halbwachs, J.L. 1986A&AS...66..131H
HJL1986 A&AS 66, 131, 1986
HJL1986 (Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added
HJL1986 only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113)
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21377+0637 STFA 56 AB 2007 57 349 39.8 6.18 7.50 A2V NZDV 213743.64+063706.2
21377+0637 STFA 56 AB 2008 58 348 39.0 6.18 7.50 A2V NZDV 213743.64+063706.2
21377+0637 STFA 56 AB 2010 61 348 39.1 6.18 7.50 A2V NZDV 213743.64+063706.2
21377+0637 STFA 56 AB 2011 62 348 39.1 6.18 7.50 A2V NZDV 213743.64+063706.2
21377+0637 STFA 56 AB 2012 65 347 39.1 6.18 7.50 A2V NZDV 213743.64+063706.2
21377+0637 STFA 56 AB 2014 69 348 39.0 6.18 7.50 A2V NZDV 213743.64+063706.2
21377+0637 STFA 56 AB 2015 71 349 38.9 6.18 7.50 A2V NZ V 213743.64+063706.2
21377+0637 STFA 56 AB 2016 72 348 39.3 6.18 7.50 A2V NZ V 213743.64+063706.2
21377+0637 STFA 56 AB 2017 74 349 39.2 6.18 7.50 A2V NZ V 213743.64+063706.2
21377+0637 STFA 56 AB 2018 76 349 39.2 6.18 7.50 A2V NZ V 213743.64+063706.2
21377+0637 STFA 56 AB 2019 78 348 39.3 6.18 7.50 A2V NZ V 213743.64+063706.2
21377+0637 STFA 56 AB 2020 79 349 38.7 6.18 7.50 A2V NZ V 213743.64+063706.2

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

 
 
WDS 21377+0637 STFA 56 AB (3 Peg) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/09/24 Diego Vercelli easy separated 350 interesting
Show 22/09/10 daedalus1 mean difficulty separated 349   Beautiful pair! Seeing: Pickering 7, good. Measure: theta 349, rho 39.58 +/- 0.056

 
 
WDS 21377+0637 STFA 56 AB (3 Peg) : MEASURES
 
 
No records found.

 
 
WDS 21377+0637 (3 Peg) : VIRTUAL EYEPIECE
 
 

21377+0637 STFA 56A mag 6.18 Sp A2V 21377+0637 STFA 56B sep 38.7 P.A. 348.70 mag 7.5 21377+0637 STFA 56C sep 84.7 P.A. 121.00 mag 13.93 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21377+0637 (3 Peg) : ALADIN DSS IMAGE @ 21h 37m 43.64s +06° 37' 06.2"
 
 
 
 
WDS 21377+0637 STFA 56 AB (3 Peg) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21377+0637 STFA 56AB distance=0' 21376+0643 STT 443AB distance=6' 21376+0643 FYM 46AC distance=6' 21368+0643 SLN 41 distance=15' 21386+0704 SKF2553 distance=30' 21399+0623 OSO 151AB distance=36' 21399+0623 OSO 151AC distance=36' 21369+0604 GWP3078 distance=36' 21385+0546 HJ 941 distance=53' 21341+0651 REE 1 distance=56' 21395+0544 FMR 164 distance=60' 21417+0625 HU 278AB distance=61' 21417+0625 HU 278AC distance=61' 21377+0528 J 1406 distance=67' 21395+0534 CVR 912 distance=68' 21419+0708 HJ 3050 distance=69' 21329+0648 HJ 3033AB distance=77' 21329+0648 FOX 261AC distance=77' 21423+0715 HU 279 distance=78' 21364+0753 HJ 938 distance=79' 21423+0555 HU 280 distance=81' 21385+0513 BAL2981 distance=85' 21379+0510 SLW1245 distance=87' 21403+0516 SKF 484 distance=90' 21436+0700 HJ 3053 distance=91' 21404+0514 DBR 329 distance=93' 21361+0806 CVR1708 distance=93' 21319+0546 GRV 475 distance=100' 21441+0709 STTA222 distance=101' 21321+0738 UC 4486 distance=104' 21327+0751 HJ 937 distance=105' 21445+0607 HDS3096 distance=105' 21305+0628 SLW1240 distance=109' 21306+0710 HU 277 distance=112' 21325+0515 SLW1242 distance=114' 21442+0518 GWP3090 distance=125' 21336+0448 BAL2980 distance=127' 21396+0431 HEI 822 distance=129' 21325+0452 HJ 3032 distance=131' 21465+0635 UC 4556 distance=132' 21465+0632 STT 450 distance=132' 21441+0506 TDS1144 distance=132' 21439+0812 UC 4540 distance=133' 21465+0611 GRV 502 distance=134' 21328+0829 GWP3072 distance=134' 21403+0848 HJ 3047 distance=137' 21316+0823 LDS4893 distance=139' 21462+0536 HJ 3057 distance=141' 21469+0722 J 202 distance=144' 21291+0744 GWP3066 distance=146' 21309+0828 J 199 distance=150' 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 21377+0637 STFA 56 AB 349 38.7
Show 21377+0637 STFA 56 AC 121 85.1
Show 21376+0643 STT 443 AB 348 8.1 6
Show 21376+0643 FYM 46 AC 130 86.0 6
Show 21368+0643 SLN 41 125 3.4 15
Show 21386+0704 SKF2553 300 34.6 30
Show 21399+0623 OSO 151 AB 101 3.8 36
Show 21399+0623 OSO 151 AC 269 15.8 36
Show 21369+0604 GWP3078 257 45.9 36
Show 21385+0546 HJ 941 310 33.3 53
Show 21341+0651 REE 1 21 0.3 56
Show 21395+0544 FMR 164 88 148.3 60
Show 21417+0625 HU 278 AB 202 3.0 61
Show 21417+0625 HU 278 AC 233 18.5 61
Show 21377+0528 J 1406 207 2.5 67
Show 21395+0534 CVR 912 105 24.1 68
Show 21419+0708 HJ 3050 37 20.9 69
Show 21329+0648 HJ 3033 AB 244 25.4 77
Show 21329+0648 FOX 261 AC 306 47.2 77
Show 21423+0715 HU 279 356 2.5 78
Show 21364+0753 HJ 938 123 11.4 79
Show 21423+0555 HU 280 0.1 81
Show 21385+0513 BAL2981 265 4.3 85
Show 21379+0510 SLW1245 42 9.9 87
Show 21403+0516 SKF 484 23 14.9 90
Show 21436+0700 HJ 3053 190 24.3 91
Show 21404+0514 DBR 329 304 5.5 93
Show 21361+0806 CVR1708 251 4.2 93
Show 21319+0546 GRV 475 226 75.2 100
Show 21441+0709 STTA222 258 87.4 101
Show 21321+0738 UC 4486 75 48.4 104
Show 21327+0751 HJ 937 341 10.6 105
Show 21445+0607 HDS3096 79 1.3 105
Show 21305+0628 SLW1240 173 97.0 109
Show 21306+0710 HU 277 105 1.0 112
Show 21325+0515 SLW1242 79 12.3 114
Show 21442+0518 GWP3090 68 12.6 125
Show 21336+0448 BAL2980 138 17.4 127
Show 21396+0431 HEI 822 359 1.2 129
Show 21325+0452 HJ 3032 93 17.5 131
Show 21465+0635 UC 4556 339 4.7 132
Show 21465+0632 STT 450 255 44.3 132
Show 21441+0506 TDS1144 115 1.1 132
Show 21439+0812 UC 4540 92 48.4 133
Show 21465+0611 GRV 502 204 30.4 134
Show 21328+0829 GWP3072 207 39.2 134
Show 21403+0848 HJ 3047 37 18.2 137
Show 21316+0823 LDS4893 276 7.6 139
Show 21462+0536 HJ 3057 7 21.2 141
Show 21469+0722 J 202 183 3.3 144
Show 21291+0744 GWP3066 106 11.9 146

 
 
WDS 21377+0637 : COMPONENTS
 
 
  A B
B pa=348.7°
sep=38.69"
 
C pa=121.0°
sep=84.72"
pa=135.5°
sep=114.39"
 
 
21377+0637 A
 
 
Name 3 Peg Coord arcsec 2000 213743.64+063706.2 Mag 6.18 Spectral class A2V (white)
PmRA 58.00 PmDE -2.0 SAO 126940 HIP 106783
Tycho2 0555-01661-1 HD 205811 HR 8265 GC 30270
BD BD+05 4830 Flamsteed 3 Pegasi Flamsteed name 3 Peg
Tycho2
Tycho2 0555-01661-1 Pflag RAmdeg 324.43185876 DEmdeg 6.61838974
PmRA 59.3 PmDE -2.1 E RAmdeg 4 E DEmdeg 4
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.53 EpDEm 1991.24
Num 11 Q RAmdeg 0.8 Q DEmdeg 0.8 Q pmRA 0.7
Q pmDE 0.7 BTmag 6.225 E BTmag 0.014 VTmag 6.181
E VTmag 0.010 Prox 391 TYC T HIP 106783
CCDM RAdeg 324.43172139 DEdeg 6.61839472 EpRA 1990 1.72
EpDE 1990 1.44 E RAdeg 3.6 E DEdeg 4.1 Posflg
Corr -0.2
SAO
SAO 126940 DelFlag RA1950 PmRA1950 0.0039
DE1950 PmDE1950 -0.003 Vmag 6.3 SpType A0
Double code Source 70 CatNum 30270 DM BD+05 4830
DMcomp BDsup HD 205811 M HD 0
GC 30270 RA1950rad 5.6515315 DE1950rad 0.1115748 PmRA2000 0.004
PmDE2000 -0.007
Hipparcos
Catalog H HIP 106783 Proxy RAhms 21 37 43.61
DEdms +06 37 06.2 Vmag 6.19 VarFlag R Vmag G
RAdeg 324.432 DEdeg 6.6184 AstroRef Plx 12.68
CCDM 21378+0637 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 205811 BD BD+05 4830
CD CP Dm number +05 4830 VIred 0.06
SpType A2V R SpType Coord arcsec 2000 213743.61+063706.2
Hipparcos 2
HIP 106783 Sn 5 So 0 Nc 1
RArad 5.6624016005 DErad 0.1155128047 Plx 11.41 PmRA 58.06
PmDE -1.74 E RArad 0.42 E DErad 0.3 E Plx 0.48
E pmRA 0.52 E pmDE 0.34 Hpmag 6.2076 E Hpmag 0.001
SHp 0.006 VA 0 BV 0.046 E BV 0.006
VI 0.06
 
 
21377+0637 B
 
 
Coord arcsec 2000 213743.13+063744.1 Mag 7.5 PmRA 56.00 PmDE -1.0
HIP 106781 Tycho2 0555-01660-1 BD BD+05 4829 Calc delta mag 1.32
Calc coord yes
Tycho2
Tycho2 0555-01660-1 Pflag RAmdeg 324.42966980 DEmdeg 6.62904189
PmRA 57.2 PmDE -1.6 E RAmdeg 5 E DEmdeg 6
E pmRA 2.0 E pmDE 1.9 EpRAm 1991.65 EpDEm 1991.34
Num 7 Q RAmdeg 1.0 Q DEmdeg 1.5 Q pmRA 0.9
Q pmDE 1.5 BTmag 7.833 E BTmag 0.016 VTmag 7.496
E VTmag 0.012 Prox 391 TYC T HIP 106781
CCDM RAdeg 324.42953806 DEdeg 6.62904556 EpRA 1990 1.76
EpDE 1990 1.50 E RAdeg 4.8 E DEdeg 5.8 Posflg
Corr -0.3
Hipparcos
Catalog H HIP 106781 Proxy RAhms 21 37 43.08
DEdms +06 37 44.6 Vmag 7.66 VarFlag R Vmag G
RAdeg 324.43 DEdeg 6.62904 AstroRef Plx 11.53
CCDM 21378+0637 N CCDM I Nsys 2 Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 205811 BD BD+05 4829
CD CP Dm number +05 4829 VIred 0.43
SpType F2V R SpType Coord arcsec 2000 213743.08+063744.6
Hipparcos 2
HIP 106781 Sn 1 So 1 Nc 1
RArad 5.6623631939 DErad 0.1156986397 Plx 6.88 PmRA 56.32
PmDE 3.84 E RArad 1.13 E DErad 0.81 E Plx 1.31
E pmRA 1.47 E pmDE 0.94 Hpmag 7.7507 E Hpmag 0.002
SHp 0.013 VA 0 BV 0.368 E BV 0.012
VI 0.43
 
 
21377+0637 C
 
 
Coord arcsec 2000 213748.52+063622.6 Mag 13.93 PmRA -12.00 PmDE -14.0
Calc delta mag 7.75 Calc coord yes