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Current system
20446+1635
BPM 2248 AB


Nearby doubles
7' : 20446+1642
BPM2246AB

14' : 20437+1635
BPM2237

27' : 20463+1624
BPM2257

28' : 20435+1657
STF2720

30' : 20446+1605
BPM2245

35' : 20434+1604
HJ 1564

35' : 20466+1616
BPM2261

39' : 20431+1705
BLL 51

41' : 20467+1607
STF2727AB

42' : 20434+1712
J 845

42' : 20453+1715
GWP2993

43' : 20456+1714
COU 425

46' : 20468+1602
BPM2264

47' : 20462+1554
STF2725AB

48' : 20463+1715
GWP2995

51' : 20411+1631
FMR 161

53' : 20415+1611
J 2319

54' : 20481+1616
SKF1770

56' : 20448+1730
BPM2252

57' : 20433+1728
J 3109

57' : 20442+1731
BPM2241

57' : 20485+1628
BPM2271

57' : 20432+1728
LOS 9

58' : 20435+1540
GWP2990

58' : 20436+1537
J 3108

59' : 20417+1716
BPM2230



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

20446+1635 BPM 2248 AB

 
 
20h 44m 35.32s +16° 34' 43.8" P.A. 95.00 sep 107.8 mag 15.20,15.56
 
 
Coord 2000 20446+1635 Discov num BPM2248 Comp AB Coord arcsec 2000 20 44 35.32 +16 34 43.8
Date first 1991 Date last 2015 Obs 7
Pa first 95 Pa last 95.3 P.A. Now (θ) 95.3°
Sep first 107.8 Sep last 107.837 Sep. Now (ρ) 107.837"
Mag pri 15.20 Mag sec 15.56 delta mag (ΔM) 0.36 Spectral class
Pri motion ra -017 Sec motion ra -010
Pri motion dec -019 Sec motion dec -004
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.649
This double is physical.
 
 
20446+1635 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 44 35 +16 34 44 BPM 2248 AB 2015 7 95 107.8 15.20 15.56 0.36 <===
Show 20 44 35 +16 34 44 BPM 2249 AC 2015 7 29 107.0 15.20 15.41 0.21
Show 20 44 43 +16 34 34 BPM 2250 BC 2015 7 332 117.2 15.56 15.41 0.15
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1811079101888791936
 
 
WDS 20446+1635 BPM 2248 AB : NOTES
 
 
discov_num notes refcode
BPM2248 AB: [PM2000] 2383182 + [PM2000] 2383659. Gvr2010
BPM2249 AC: [PM2000] 2383182 + [PM2000] 2383425. Gvr2010
BPM2250 BC: [PM2000] 2383659 + [PM2000] 2383425. Gvr2010
 
 
REFERENCES
 
 
refcode metd author reference
Gvr2010 Pa - Gavras, P. Sinachopoulos, D., Le Campion, J.F., & Cucourant, C. 2010A&A...521A 4G
Gvr2010 +T A&A 521, A4, 2010
Gvr2010 (Note: mean measures from AC2000.2, CdC2000, USNO-A2.0, Yellow Sky, and M2000
Gvr2010 catalogs, spanning years ~1900-2000)
 
 
DISCOVERER
 
 
idgroup discov author
1 BPM Bordeaux PM2000 catalogue (main catalog: separation < 2')
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20446+1635 BPM2248 AB 1997 2 96 107.7 15.25 15.59 NV 204435.32+163443.8
20446+1635 BPM2248 AB 2001 3 95 107.8 15.25 15.59 NV 204435.32+163443.8
20446+1635 BPM2248 AB 2015 4 95 107.8 15.20 15.56 NV 204435.32+163443.8

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

 
 
WDS 20446+1635 BPM 2248 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20446+1635 BPM 2248 AB : MEASURES
 
 
No records found.

 
 
WDS 20446+1635 : VIRTUAL EYEPIECE
 
 

20446+1635 BPM2248A mag 15.2 20446+1635 BPM2250B sep 107.7 P.A. 95.40 mag 15.56 20446+1635 BPM2249C sep 106.0 P.A. 28.20 mag 15.41 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 20446+1635 : ALADIN DSS IMAGE @ 20h 44m 35.32s +16° 34' 43.8"
 
 
 
 
WDS 20446+1635 BPM 2248 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20446+1635 BPM2248AB distance=0' 20446+1635 BPM2250BC distance=2' 20446+1642 BPM2246AB distance=7' 20446+1642 BPM2247AC distance=7' 20437+1635 BPM2237 distance=14' 20463+1624 BPM2257 distance=27' 20435+1657 STF2720 distance=28' 20446+1605 BPM2245 distance=30' 20434+1604 HJ 1564 distance=35' 20466+1616 BPM2261 distance=35' 20431+1705 BLL 51 distance=39' 20467+1607 STF2727AB distance=41' 20467+1607 FYM 18AD distance=41' 20434+1712 J 845 distance=42' 20453+1715 GWP2993 distance=42' 20456+1714 COU 425 distance=43' 20468+1602 BPM2264 distance=46' 20462+1554 WSI 110Aa,Ab distance=47' 20462+1554 STF2725AB distance=47' 20463+1715 GWP2995 distance=48' 20411+1631 FMR 161 distance=51' 20415+1611 J 2319 distance=53' 20481+1616 SKF1770 distance=54' 20448+1730 BPM2252 distance=56' 20433+1728 J 3109 distance=57' 20442+1731 BPM2241 distance=57' 20485+1628 BPM2271 distance=57' 20432+1728 LOS 9 distance=57' 20435+1540 GWP2990 distance=58' 20436+1537 J 3108 distance=58' 20417+1716 BPM2230 distance=59' 20457+1537 BPM2255 distance=61' 20481+1601 BPM2269 distance=62' 20430+1734 BPM2236 distance=63' 20413+1551 UC 4257 distance=65' 20406+1559 BPM2225 distance=67' 20466+1532 J 3110 distance=69' 20489+1558 BPM2275 distance=73' 20479+1732 BRT1348 distance=75' 20485+1545 BPM2272 distance=76' 20444+1752 UC 4276 distance=78' 20462+1520 YR 27AB distance=78' 20467+1523 BPM2263 distance=78' 20416+1738 J 3107 distance=80' 20408+1733 BPM2226 distance=80' 20503+1630 LDS1048AB distance=80' 20503+1630 LDS1048AC distance=80' 20406+1539 HDS2947 distance=81' 20396+1555 WCK 2Aa,Ab (Sualocin) distance=82' 20396+1555 BU 298AB (Sualocin) distance=82' 20396+1555 HJ 1554AC (Sualocin) distance=82' 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 20446+1635 BPM2248 AB 95 107.8
Show 20446+1635 BPM2249 AC 29 107.0
Show 20446+1635 BPM2250 BC 332 117.2 2
Show 20446+1642 BPM2246 AB 16 90.0 7
Show 20446+1642 BPM2247 AC 173 116.0 7
Show 20437+1635 BPM2237 49 108.4 14
Show 20463+1624 BPM2257 337 107.8 27
Show 20435+1657 STF2720 177 4.0 28
Show 20446+1605 BPM2245 198 112.1 30
Show 20434+1604 HJ 1564 41 11.4 35
Show 20466+1616 BPM2261 202 69.5 35
Show 20431+1705 BLL 51 159 56.3 39
Show 20467+1607 STF2727 AB 266 8.8 41
Show 20467+1607 FYM 18 AD 323 109.4 41
Show 20434+1712 J 845 224 4.0 42
Show 20453+1715 GWP2993 104 11.1 42
Show 20456+1714 COU 425 327 0.7 43
Show 20468+1602 BPM2264 222 107.2 46
Show 20462+1554 WSI 110 Aa,Ab 343 0.0 47
Show 20462+1554 STF2725 AB 12 6.2 47
Show 20463+1715 GWP2995 257 8.3 48
Show 20411+1631 FMR 161 322 27.8 51
Show 20415+1611 J 2319 192 7.5 53
Show 20481+1616 SKF1770 223 3.4 54
Show 20448+1730 BPM2252 246 39.8 56
Show 20433+1728 J 3109 245 7.8 57
Show 20442+1731 BPM2241 344 107.2 57
Show 20485+1628 BPM2271 127 97.8 57
Show 20432+1728 LOS 9 116 2.8 57
Show 20435+1540 GWP2990 291 26.5 58
Show 20436+1537 J 3108 196 6.3 58
Show 20417+1716 BPM2230 15 58.6 59
Show 20457+1537 BPM2255 85 72.3 61
Show 20481+1601 BPM2269 222 81.9 62
Show 20430+1734 BPM2236 331 95.7 63
Show 20413+1551 UC 4257 208 20.3 65
Show 20406+1559 BPM2225 57 22.7 67
Show 20466+1532 J 3110 222 6.9 69
Show 20489+1558 BPM2275 143 74.7 73
Show 20479+1732 BRT1348 123 5.7 75
Show 20485+1545 BPM2272 333 103.7 76
Show 20444+1752 UC 4276 284 50.8 78
Show 20462+1520 YR 27 AB 240 0.9 78
Show 20467+1523 BPM2263 265 53.6 78
Show 20416+1738 J 3107 119 6.0 80
Show 20408+1733 BPM2226 226 107.2 80
Show 20503+1630 LDS1048 AB 151 13.7 80
Show 20503+1630 LDS1048 AC 213 1.6 80
Show 20406+1539 HDS2947 111 0.2 81
Show Sualocin 20396+1555 WCK 2 Aa,Ab 289 0.1 82
Show Sualocin 20396+1555 BU 298 AB 233 35.5 82

 
 
WDS 20446+1635 : COMPONENTS
 
 
  A B
B pa=95.4°
sep=107.73"
 
C pa=28.2°
sep=105.97"
pa=331.1°
sep=118.36"
 
 
20446+1635 A
 
 
Coord arcsec 2000 204435.32+163443.8 Mag 15.2 PmRA -17.00 PmDE -19.0
 
 
20446+1635 B
 
 
Coord arcsec 2000 204442.78+163433.6 Coord calc 204442.78+163433.6 Mag 15.56 PmRA -10.00
PmDE -4.0 Calc delta mag 0.36
 
 
20446+1635 C
 
 
Coord arcsec 2000 204438.80+163617.2 Mag 15.41 PmRA -9.00 PmDE -4.0
Calc delta mag 0.21 Calc coord yes