25 CVn (**)
|
| Name: |
25 CVn |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h37m27.70s / +36°17'41.40" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
| STF1768 |
AB |
5m0 |
7m0 |
1.6" |
93° |
2019 |
| STF1768 |
AC |
5m0 |
11m6 |
214.3" |
321° |
2015 |
| KZA73 |
AD |
5m0 |
13m0 |
335.6" |
92° |
2015 |
| KZA73 |
AE |
5m0 |
12m7 |
369.5" |
139° |
2015 |
| KZA73 |
AF |
5m0 |
9m4 |
437.3" |
118° |
2015 |
|
|
|
|
|
|
|
| Robert Zebahl |
60mm f/18.7, 160x
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 60mm. The diffraction ring of the primary component is virtually invisible. The companion appears only in few moments as an extremely faint, elongated brightening in the diffraction ring. Very difficult. Telescope should be in very good optical condition!
|
|
70mm f/16, 160x
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 70mm. Companion only visible as a subtle, elongated, not permanently visible brightening. The diffraction ring of the primary component is only visible occasionally. Difficult. Telescope should be in good optical condition!
|
|
80mm f/14, 160x
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 80mm. Companion permanently visible as elongated brightening in the diffraction ring. But the diffraction ring itself appears rather faint. Moderately difficult.
|
|
90mm f/12.5, 160x
AB: 2020-03-16: 102/1122mm ED refractor stopped down to 90mm. Companion quite clearly recognizable as elongated brightening in diffraction ring. Relatively simple.
|
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102mm f/11, 160x
AB: 2020-03-16: The faint companion is immediately recognizable as a distinct, slightly elongated brightening in the diffraction ring. Easy.
|
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152mm f/5.9, 150x, Bortle 6-, SQM-L 19.1
AB: 2020-03-19: At 150x the clearly fainter companion is visible as a roundish brightening. Due to the chromatic aberration of the achromat (152mm f/5.9) the companion is almost outshined. At 180x the companion is then well, at 225x and 300x very well visible as a tiny separated star.
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|
AG 190 (**)
|
| Name: |
AG190 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h35m38.82s / +49°39'21.70" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
9m6 |
9m8 |
2.6" |
13° |
2017 |
|
| Robert Zebahl |
70mm f/5.7, 80x, Bortle 6, SQM-L 19.4
2020-04-20: Pretty faint double star. At 80x still very tight pair with little difference in brightness. Not very attractive.
|
|
|
S 654 (**)
|
| Name: |
S654 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h46m59.77s / +38°32'33.70" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
5m6 |
8m9 |
71.3" |
239° |
2018 |
|
| René Merting |
100mm f/6.4, 32x
bei 32x ein weit getrenntes Pärchen - B im Südwesten ist deutlich schwächer und farblos ggü. der weiß strahlenden Komponente A
|
|
|
STF 1606 (**)
|
| Name: |
STF1606 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
12h10m47.34s / +39°53'29.50" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m4 |
7m9 |
0.7" |
143° |
2019 |
|
|
|
|
|
|
|
| Robert Zebahl |
120mm f/5, 200x, Bortle 6-, SQM-L 19.0
2021-04-04: The double star appeared slightly elongated.
|
|
|
STF 1622 (**)
|
| Name: |
STF1622, 2 CVn |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
12h16m07.55s / +40°39'36.60" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
5m9 |
8m7 |
11.6" |
260° |
2017 |
|
| Robert Zebahl |
120mm f/5, 86x, Bortle 6-, SQM-L 19.0
2021-04-04: Beautiful double star with components of very different brightness. Primary component is shining in bright, brilliant orange, the well separated companion appears grey-bluish.
|
|
|
STF 1632 (**)
|
| Name: |
STF1632 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
12h20m13.50s / +37°54'07.70" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
6m8 |
10m0 |
10.1" |
192° |
2015 |
|
| Robert Zebahl |
120mm f/5, 86x, Bortle 6-, SQM-L 19.0
2021-04-04: Relatively wide pair with large difference in brightness. Primary component appeared white-yellowish with faint companion.
|
|
|
STF 1692 (**)
|
| Name: |
STF1692, 12 CVn, alpha CVn, Cor Caroli |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
12h56m01.67s / +38°19'06.20" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
2m9 |
5m5 |
19.5" |
230° |
2018 |
|
| Robert Zebahl |
70mm f/5.7, 22x
Beautiful view. Clearly unequal with nice angular distance. Primary component appeared in pale yellow, companion silvery-white.
|
|
4.5" f/8, 28x, Bortle 6, NELM 5m3, SQM-L 19.7
Well split with big difference in brightness.
|
|
| René Merting |
100mm f/6.4, 32x
bei 64x ein auffälliger Doppelstern - A ist gleißend weiß, B im Südwesten ist 1.5 Größenklassen schwächer (2.67 mag lt. Stelle Doppie, schon zum zweiten Mal vertan hier)
|
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12.5" f/4.5, 72x
bei 72x ein schönes Pärchen - A ist weiß - B zeigt sich gut getrennt südwestlich von A, ist gut 1.5 Größenklassen schwächer (2.67 mag laut Stelle Doppie) und mit einem leichten Stich ins gelbliche (warmweiß) - zurück auf 20x eine ungleiche 8, bei 32x knapp getrennt
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STF 1747 (**)
|
| Name: |
STF1747 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h27m45.73s / +47°45'32.20" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
9m3 |
10m2 |
14.9" |
345° |
2015 |
|
| Robert Zebahl |
70mm f/5.7, 44x, Bortle 6, SQM-L 19.4
2020-04-20: Easy to separate. The primary component appeared slightly orange with a noticeably fainter companion.
|
|
|
STF 1755 (**)
|
| Name: |
STF1755 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h32m21.99s / +36°49'05.60" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m3 |
8m1 |
4.1" |
133° |
2018 |
|
| Robert Zebahl |
70mm f/5.7, 67x, Bortle 6-, NELM 5m0, SQM-L 19.1
At 31x just separable, extremely tight. At 44x clearly separated, but still close, relatively dim pair with moderate difference in brightness. At 67x and 100x well separable. The primary component appeared slightly orange.
|
|
| René Merting |
100mm f/6.4, 64x
bei 64x ein extrem eng stehendes Paar - B im SO ist maximal eine halbe Größenklasse schwächer als A - beide spielen Braut in ihren reinweißen Kleidern
|
|
|
STF 1758 (**)
|
| Name: |
STF1758 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h32m51.51s / +49°08'24.30" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
8m7 |
8m9 |
3.4" |
290° |
2019 |
|
| Robert Zebahl |
70mm f/5.7, 67x, Bortle 6, SQM-L 19.4
2020-04-20: Clearly split, still relatively tight pair with little difference in brightness. The components appear slightly different in color: slightly orange, yellowish.
|
|
|
STF 1769 (**)
|
| Name: |
STF1769 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h38m01.95s / +39°10'41.00" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
7m9 |
10m4 |
1.6" |
45° |
2015 |
|
AC |
7m9 |
9m3 |
56.2" |
259° |
2015 |
|
AD |
7m9 |
13m0 |
151.6" |
188° |
2002 |
|
CD |
9m3 |
13m0 |
142.9" |
167° |
2002 |
|
|
|
|
|
|
|
| René Merting |
100mm f/6.4, 32x
AC: bei 32x ein weit auseinander stehendes Pärchen - B im Westen ist eine Größenklasse schwächer als die weiße Komponente A und wirkt gegen A richtiggehend blaugrau
|
|
|
STF 1786 (**)
|
| Name: |
STF1786 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h49m38.98s / +34°59'18.10" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
8m9 |
10m3 |
11.0" |
22° |
2015 |
|
| Robert Zebahl |
70mm f/5.7, 44x, Bortle 6, SQM-L 19.4
2020-04-20: Nicely separated at an attractive distance and with a clear difference in brightness. The components appeared pale orange and greyish.
|
|
|
STF 1789 (**)
|
| Name: |
STF1789 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h54m05.19s / +32°49'35.20" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
8m6 |
9m0 |
6.7" |
328° |
2015 |
|
|
|
|
|
|
|
| Robert Zebahl |
70mm f/5.7, 31x, Bortle 6, SQM-L 19.4
2020-04-20: At 22x clearly visible as figure '8' and almost separated. At 31x fine separation of the still close pair. A slight difference in brightness and color is visible: white-yellowish, yellowish-orange.
|
|
|
STFA 24 (**)
|
| Name: |
STFA24 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h10m03.27s / +38°29'55.90" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
AB |
6m0 |
6m3 |
275.6" |
296° |
2012 |
|
|
|
|
This double star contains of the components 15 and 17 CVn.
|
|
| Robert Zebahl |
B 8x40, Bortle 7, NELM 5m0, SQM-L 19.2
Both components similar in brightness with large distance.
|
|
| René Merting |
12.5" f/4.5, 45x
extrem weit getrennt, ein auffälliges Trio zusammen mit 16 CVn nördlich - eher etwas für Kleinst-Ferngläser
|
|
|
STT 261 (**)
|
| Name: |
STT261 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
13h12m02.02s / +32°05'07.90" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m4 |
7m6 |
2.6" |
338° |
2018 |
|
|
|
|
|
|
|
| Robert Zebahl |
70mm f/5.7, 57x, Bortle 6, SQM-L 19.4
2020-04-20: At 44x immediately visible as figure '8', even separable on closer look. The components appeared similarly bright. Overall rather dim. At 57x clearly split, but still very close together with a small difference in brightness.
|
|
|
STT 274 (**)
|
| Name: |
STT274 |
| Type: |
** |
| Constellation: |
CVn |
| Coordinates: |
14h06m41.61s / +34°46'42.80" |
| Components: |
|
|
m1 |
m2 |
ρ |
θ |
Year |
|
|
7m1 |
10m5 |
12.9" |
51° |
2018 |
|
| Robert Zebahl |
70mm f/5.7, 133x, Bortle 6, SQM-L 19.4
2020-04-20: At 100x and 133x no signs of the faint companion visible.
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