20275-0206 S 749 AB (HD 194765)

 
 
20h 27m 27.56s -02° 06' 10.5" P.A. 189.00 sep 60.0 mag 6.76,7.51 Sp F5V+G2V+ dist. 46.9 pc (152.99 l.y.)
 
 
Coord 2000 20275-0206 Discov num S   749 Comp AB Coord arcsec 2000 20 27 27.56 -02 06 10.5
Date first 1800 Date last 2022 Obs 45
Pa first 193 Pa last 188.5 P.A. Now (θ) 188.5°
Sep first 61.5 Sep last 59.96 Sep. Now (ρ) 59.96"
Mag pri 6.76 Mag sec 7.51 delta mag (ΔM) 0.75 Spectral class F5V+G2V+ (yellow-white/yellow)
Pri motion ra -066 Sec motion ra -062
Pri motion dec -068 Sec motion dec -069
Notes N T (See Notes, Parallax indicates physical)
rPM=0.044 (< 0.3, Physical double)
This double is physical.
 
 
20275-0206 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 144450 20 27 28 -02 06 10 LSC 89 Aa,Ab 2015 4 197 0.0 7.30 7.70 0.40
Show HD 194765 144450 20 27 28 -02 06 10 S 749 AB 2022 45 189 60.0 6.76 7.51 0.75 <===
Show 144450 20 27 28 -02 06 10 S 749 AC 2022 11 329 45.6 6.76 11.30 4.54
Show 144450 20 27 28 -02 06 10 S 749 AD 2022 10 269 89.9 6.76 12.37 5.61
Show 20 27 26 -02 05 33 S 749 CD 2022 13 239 77.5 10.80 11.00 0.20
Show 20 27 26 -02 05 33 S 749 CE 2022 7 197 18.8 10.80 13.70 2.90
Show 20 27 21 -02 06 14 S 749 DF 2022 8 26 6.7 11.00 13.60 2.60
Septuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 194765 Constellation Aquila SAO 144450 HIP 100895
Tycho2 5167-00198-1 Gaia DR2 4228891667990334976 HD 194765 GC 28446
BD BD-02 5282 Distance 46.9 Distance ly 152.99
 
 
WDS 20275-0206 S 749 AB (HD 194765) : NOTES
 
 
discov_num notes refcode
S 749 AB: B is BD-02@5282.
AB: HJL 280. HJL1986
AB: SHY 331. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
This cannot be the close 160.8-d spectroscopic binary. Grf2014b
AB: A is SB2, P=160.83d (Halbwachs et al. 2012) HJL2012b
AC: H 5 35. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Grf2014b not - Griffin, R.F. 2014Obs...134..109G
Grf2014b Observatory 134, 109, 2014
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)
HJL2012b not - Halbwachs, J.L., Mayor, M., & Udry, S. 2012MNRAS.422...14H
HJL2012b MNRAS 422, 14, 2012
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
DISCOVERER
 
 
idgroup discov author
1 LSC Lowell-Southern Connecticut
3 S South, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20275-0206 S 749 AB 2002 31 189 59.7 6.76 7.51 F7V NZDV 202727.56-020610.5
20275-0206 S 749 AB 2012 33 188 59.7 6.76 7.51 F7V NZDV 202727.56-020610.5
20275-0206 S 749 AB 2015 36 189 59.9 6.76 7.51 F7V+G2V+ NZ V 202727.56-020610.5
20275-0206 S 749 AB 2016 37 188 60.0 6.76 7.51 F7V+G2V+ NZ V 202727.56-020610.5
20275-0206 S 749 AB 2017 38 189 59.8 6.76 7.51 F7V+G2V+ NZ V 202727.56-020610.5
20275-0206 S 749 AB 2018 40 189 59.8 6.76 7.51 F7V+G2V+ NZ V 202727.56-020610.5
20275-0206 S 749 AB 2019 43 189 60.1 6.76 7.51 F7V+G2V+ NT 202727.56-020610.5
20275-0206 S 749 AB 2022 45 189 60.0 6.76 7.51 F5V+G2V+ NT 202727.56-020610.5

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

 
 
WDS 20275-0206 S 749 AB (HD 194765) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/08/24 Daedalus1 mean difficulty separated 189   A very wide pair of yellowish white stars.

 
 
WDS 20275-0206 S 749 AB (HD 194765) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/08/24 Daedalus1 mean difficulty 60.21 0.07 189.00 0.00 0.78 12 Seeing: Pickering 8, excellent
 
 
WDS 20275-0206 (HD 194765) : VIRTUAL EYEPIECE
 
 

20275-0206 S   749A mag 6.76 Sp F5V 20275-0206 LSC  89Ab mag 7.7 Sp F9V 20275-0206 S   749B sep 60.0 P.A. 188.50 mag 7.51 Sp G2V 20275-0206 S   749C sep 44.8 P.A. 325.80 mag 10.8 20275-0206 S   749D sep 91.9 P.A. 268.10 mag 11 20275-0206 S   749E sep 36.2 P.A. 302.00 mag 13.7 20275-0206 S   749F sep 89.0 P.A. 271.90 mag 13.6 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 20275-0206 (HD 194765) : ALADIN DSS IMAGE @ 20h 27m 27.56s -02° 06' 10.5"
 
 
 
 
WDS 20275-0206 S 749 AB (HD 194765) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


20275-0206  S   749AB distance=0' 20275-0206  S   749CD distance=1' 20275-0206  S   749CE distance=1' 20275-0206  S   749DF distance=2' 20268-0225  BRT 500 distance=22' 20258-0154  HJ 2960 distance=28' 20248-0220  J  1773 distance=44' 20285-0254  TDT2314 distance=51' 20243-0248  UC 4168 distance=63' 20263-0106  J  2311 distance=64' 20290-0105  BAL 612 distance=66' 20310-0126  UC 4204 distance=66' 20291-0102  TOB 311 distance=69' 20280-0318  J  1705 distance=72' 20300-0311  RST4668 distance=75' 20284-0321  RST4667 distance=77' 20313-0304  TDT2336 distance=83' 20237-0104  HDS2913 distance=85' 20329-0236  BRT 501 distance=88' 20249-0327  UC 4171 distance=90' 20212-0158  BRT 499 distance=95' 20266-0343  RST4666 distance=98' 20312-0328  J  1395 distance=100' 20227-0319  UC 4161 distance=102' 20319-0327  A   734 distance=105' 20317-0337  GWP2964 distance=112' 20324-0330  HJ  919 distance=112' 20199-0215  STF2661 distance=114' 20334-0321  HDS2936 distance=117' 20275-0405  TDT2291 distance=119' 20198-0134  RST4663 distance=120' 20248-0400  GWP2945 distance=121' 20204-0107  RST5154 distance=122' 20195-0239  KPP 468 distance=124' 20244-0408  HJ  915AB distance=131' 20244-0408  HJ  915AC distance=131' 20244-0408  ABH 140AD distance=131' 20244-0408  ABH 140AE distance=131' 20244-0408  ABH 140AF distance=131' 20244-0408  ABH 140AG distance=131' 20244-0408  ABH 140AH distance=131' 20186-0146  BAL 258AB distance=135' 20186-0146  J  1702AC distance=135' 20280-0009  HJ  916AB distance=136' 20280-0009  SHY 333BC distance=136' 20190-0258  RST4662 distance=137' 20286-0426  TOK 700 distance=141' 20184-0245  HJ  911 distance=142' 20212-0353  BRT 498 distance=143' 20289-0016  RST5156 distance=145' 20363-0305  KPP1332 distance=145' 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 20275-0206 S 749 AB 189 60.0
Show 20275-0206 S 749 AC 329 45.6
Show 20275-0206 S 749 AD 269 89.9
Show 20275-0206 LSC 89 Aa,Ab 197 0.0
Show 20275-0206 S 749 CD 239 77.5 1
Show 20275-0206 S 749 CE 197 18.8 1
Show 20275-0206 S 749 DF 26 6.7 2
Show 20268-0225 BRT 500 195 2.5 22
Show 20258-0154 HJ 2960 232 13.2 28
Show 20248-0220 J 1773 51 4.5 44
Show 20285-0254 TDT2314 238 0.7 51
Show 20243-0248 UC 4168 194 16.4 63
Show 20263-0106 J 2311 99 6.0 64
Show 20290-0105 BAL 612 238 8.5 66
Show 20310-0126 UC 4204 179 49.4 66
Show 20291-0102 TOB 311 110 23.2 69
Show 20280-0318 J 1705 319 7.7 72
Show 20300-0311 RST4668 162 2.2 75
Show 20284-0321 RST4667 178 9.0 77
Show 20313-0304 TDT2336 146 2.6 83
Show 20237-0104 HDS2913 1 0.6 85
Show 20329-0236 BRT 501 135 4.4 88
Show 20249-0327 UC 4171 227 64.7 90
Show 20212-0158 BRT 499 252 5.0 95
Show 20266-0343 RST4666 199 0.5 98
Show 20312-0328 J 1395 298 5.7 100
Show 20227-0319 UC 4161 1 30.0 102
Show 20319-0327 A 734 294 2.0 105
Show 20317-0337 GWP2964 162 24.1 112
Show 20324-0330 HJ 919 219 24.6 112
Show 20199-0215 STF2661 341 24.4 114
Show 20334-0321 HDS2936 156 0.2 117
Show 20275-0405 TDT2291 87 0.5 119
Show 20198-0134 RST4663 334 1.1 120
Show 20248-0400 GWP2945 240 49.2 121
Show 20204-0107 RST5154 301 3.3 122
Show 20195-0239 KPP 468 45 4.6 124
Show 20244-0408 HJ 915 AB 335 45.4 131
Show 20244-0408 HJ 915 AC 36 25.1 131
Show 20244-0408 ABH 140 AD 69 14.4 131
Show 20244-0408 ABH 140 AE 102 40.3 131
Show 20244-0408 ABH 140 AF 311 98.1 131
Show 20244-0408 ABH 140 AG 272 94.0 131
Show 20244-0408 ABH 140 AH 241 115.5 131
Show 20186-0146 BAL 258 AB 46 5.8 135
Show 20186-0146 J 1702 AC 289 11.7 135
Show 20280-0009 HJ 916 AB 260 14.8 136
Show 20280-0009 SHY 333 BC 149 999.9 136
Show 20190-0258 RST4662 355 1.2 137
Show 20286-0426 TOK 700 235 0.1 141
Show 20184-0245 HJ 911 122 21.5 142

 
 
WDS 20275-0206 : COMPONENTS
 
 
  A Ab B C D E
Ab pa=196.7°
sep=0.02"
 
B pa=188.5°
sep=59.96"
pa=188.5°
sep=59.94"
 
C pa=325.8°
sep=44.84"
pa=325.8°
sep=44.85"
pa=350.4°
sep=97.77"
 
D pa=268.1°
sep=91.94"
pa=268.1°
sep=91.94"
pa=304.1°
sep=100.26"
pa=238.9°
sep=77.88"
 
E pa=302.0°
sep=36.18"
pa=302.0°
sep=36.19"
pa=344.4°
sep=81.44"
pa=197.1°
sep=18.78"
pa=70.0°
sep=65.11"
 
F pa=271.9°
sep=88.97"
pa=271.9°
sep=88.97"
pa=307.8°
sep=101.39"
pa=241.8°
sep=72.34"
pa=26.3°
sep=6.69"
pa=254.4°
sep=60.45"
 
 
20275-0206 A
 
 
Name HD 194765 Coord arcsec 2000 202727.56-020610.5 Mag 6.76 Spectral class F5V (yellow-white)
PmRA -66.00 PmDE -68.0 SAO 144450 HIP 100896
Tycho2 5167-00198-1 HD 194765 GC 28447 BD BD-02 5283
Tycho2
Tycho2 5167-00198-1 Pflag RAmdeg 306.86468450 DEmdeg -2.10307757
PmRA -65.1 PmDE -69.0 E RAmdeg 4 E DEmdeg 4
E pmRA 1.0 E pmDE 1.0 EpRAm 1991.26 EpDEm 1990.94
Num 17 Q RAmdeg 0.8 Q DEmdeg 1.0 Q pmRA 0.8
Q pmDE 1.0 BTmag 7.295 E BTmag 0.015 VTmag 6.755
E VTmag 0.010 Prox 599 TYC T HIP 100896
CCDM RAdeg 306.86483500 DEdeg -2.10290972 EpRA 1990 1.67
EpDE 1990 1.24 E RAdeg 3.7 E DEdeg 4.4 Posflg
Corr -0.3
SAO
SAO 144450 DelFlag RA1950 PmRA1950 -0.0053
DE1950 PmDE1950 -0.06 Vmag 6.6 SpType F8
Double code Source 70 CatNum 28447 DM BD-02 5283
DMcomp BDsup HD 194765 M HD 0
GC 28447 RA1950rad 5.34447944 DE1950rad -0.03958105 PmRA2000 -0.0051
PmDE2000 -0.063
Hipparcos
Catalog H HIP 100896 Proxy RAhms 20 27 27.56
DEdms -02 06 10.5 Vmag 6.71 VarFlag R Vmag H
RAdeg 306.865 DEdeg -2.10291 AstroRef Plx 20.7
CCDM 20274-0206 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 194765 BD BD-02 5283
CD CP Dm number -02 5283 VIred 0.58
SpType F8 R SpType Coord arcsec 2000 202727.56-020610.5
Hipparcos 2
HIP 100896 Sn 5 So 0 Nc 1
RArad 5.3558018733 DErad -0.036702682 Plx 21.84 PmRA -64.8
PmDE -68.75 E RArad 0.46 E DErad 0.37 E Plx 0.57
E pmRA 0.7 E pmDE 0.57 Hpmag 6.8195 E Hpmag 0.0006
SHp 0.006 VA 0 BV 0.519 E BV 0.007
VI 0.59
 
 
20275-0206 Ab
 
 
Coord arcsec 2000 202727.56-020610.5 Mag 7.7 Spectral class F9V (yellow-white) Calc delta mag 0.4
Calc coord yes
 
 
20275-0206 B
 
 
Coord arcsec 2000 202726.97-020709.8 Mag 7.51 Spectral class G2V (yellow) PmRA -62.00
PmDE -69.0 SAO 144449 HIP 100895 Tycho2 5167-00488-1
HD 194766 GC 28446 BD BD-02 5282 Calc delta mag 0.21
Calc coord yes
Tycho2
Tycho2 5167-00488-1 Pflag RAmdeg 306.86222069 DEmdeg -2.11952183
PmRA -61.5 PmDE -70.1 E RAmdeg 4 E DEmdeg 6
E pmRA 1.2 E pmDE 1.3 EpRAm 1991.33 EpDEm 1990.70
Num 12 Q RAmdeg 1.5 Q DEmdeg 1.3 Q pmRA 1.5
Q pmDE 1.3 BTmag 8.076 E BTmag 0.015 VTmag 7.514
E VTmag 0.011 Prox 599 TYC T HIP 100895
CCDM RAdeg 306.86236278 DEdeg -2.11935028 EpRA 1990 1.68
EpDE 1990 1.21 E RAdeg 4.2 E DEdeg 5.5 Posflg
Corr -0.2
SAO
SAO 144449 DelFlag RA1950 PmRA1950 -0.0055
DE1950 PmDE1950 -0.055 Vmag 8 SpType F8
Double code Source 70 CatNum 28446 DM BD-02 5282
DMcomp BDsup HD 194766 M HD 0
GC 28446 RA1950rad 5.34443124 DE1950rad -0.03986675 PmRA2000 -0.0053
PmDE2000 -0.058
Hipparcos
Catalog H HIP 100895 Proxy RAhms 20 27 26.97
DEdms -02 07 09.7 Vmag 7.49 VarFlag R Vmag G
RAdeg 306.862 DEdeg -2.11935 AstroRef Plx 21.49
CCDM 20274-0206 N CCDM I Nsys 2 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 194766 BD BD-02 5282
CD CP Dm number -02 5282 VIred 0.59
SpType F8 R SpType Coord arcsec 2000 202726.97-020709.7
Hipparcos 2
HIP 100895 Sn 5 So 0 Nc 1
RArad 5.3557587524 DErad -0.0369896414 Plx 21.32 PmRA -59.31
PmDE -67.38 E RArad 0.5 E DErad 0.45 E Plx 0.58
E pmRA 0.77 E pmDE 0.72 Hpmag 7.6062 E Hpmag 0.0008
SHp 0.009 VA 0 BV 0.52 E BV 0.01
VI 0.59
 
 
20275-0206 C
 
 
Coord arcsec 2000 202725.88-020533.4 Coord calc 202725.88-020533.4 Mag 10.8 PmRA 0.00
PmDE 1.0 Calc delta mag 3.5
 
 
20275-0206 D
 
 
Coord arcsec 2000 202721.43-020613.6 Coord calc 202721.43-020613.6 Mag 11 PmRA -17.00
PmDE -31.0 Calc delta mag 3.7
 
 
20275-0206 E
 
 
Coord arcsec 2000 202725.51-020551.3 Mag 13.7 Calc delta mag 6.4 Calc coord yes
 
 
20275-0206 F
 
 
Coord arcsec 2000 202721.63-020607.6 Mag 13.6 PmRA 35.00 PmDE 41.0
Calc delta mag 6.3 Calc coord yes