Monday, June 22, 2020

identified Vulpecula fields

Identified the images from the Thursday night double star run. All times Friday early morning. All images RAW, daylight white balance, ISO 3200, 20 seconds. Darks not applied, so there are lots of hot pixels.

Tycho 1612-753-1 imaged at 1:47.

Vulpecula stars with Tycho 1612-753-1

I did a detail analysis of this image, locating about 18 double stars... WSI 22 is near the bottom-right.

HD 344275 imaged at 1:55.

Vulpecula stars with HD 344275

HD 183013 imaged at 2:01.
Vulpecula stars with HD 183013

Tycho 1612-1124-1 captured at 2:02.

Vulpecula stars with Tycho 1612-1124-1

HD 183418 imaged at 2:06.

Vulpecula stars with HD 183418

HD 183459 collected at 2:08.
Vulpecula stars with HD 183459

Well. Those remarkable faint bluish stars horizontally arranged at the bottom-left or south-east corner of the image at the members of double star LDS 1023. The PA would be around 270. Separation? Huge! Once again begs the question, why would not HD 344504 with it's somewhat bright neighbour not be considered a double?!

Tycho 1613-568-1 imaged at 2:11.
Vulpecula stars with Tycho 1613-568-1

Tycho 1612-857-1 photographed at 2:12.

Vulpecula stars with Tycho 1612-857-1

WW Vul aka LI 2 is at the bottom right of the image. The companion is mag 16, I believe. So below the threshold for these images...

GSC 1612-891 imaged at 2:15.

Vulpecula stars with GSC 1612-891

WSI 22 and STF 2515 again...

HD 344344 imaged at 2:19.

Vulpecula stars with HD 344344

TDS 990 is at the top-right but not splittable at 1.0".

Tycho 1612-1253-1 captured at 2:20.

Vulpecula stars with Tycho 1612-1253-1

[ed: This is the best image of STF 3111. You can clearly see a snowman oriented NW-SW. Not separated. Blue and white stars. 2.5". PA from ST3 is 116°. Wow.]

[ed: Nice easy pair, horizontally oriented in the north-west quadrant. A is left or east, white or pale blue; pale orange star to the west. That's SLE 943, from the WDS. SkyTools calls the east star TYC 01612-1263 1 and the west GSC 01612-1421.]

HD 182695 captured at 2:22.

Vulpecula stars with HD 182695

182695 is aka COU 513, itself a double. But it's only a 0.2" gap...

HD 344317 imaged at 2:24.

Vulpecula stars with HD 344317

[ed: Near centre is the pleasing double. White and orange stars, unequal. PA is maybe 170. This is SLE 946 from the WDS. SkyTools shows a single star, the aforementioned HD 344317.]

Tycho 2125-1587-1 photographed at 2:27.
Vulpecula stars with Tycho 2125-1587-1

Tycho 2125-1333-1 imaged at 2:32.
Vulpecula stars with Tycho 2125-1333-1

Tycho 2125-868-1 captured at 2:36.
Vulpecula stars with Tycho 2125-868-1

[ed: Double star J 1221 is in this image but at 2.1", it is not resolved. SkyTools refers to this as TYC 02125-1240 1.]

COU 516 captured at 2:39.
Vulpecula stars with COU 516

Separation 1.8". Ah, no.

Tycho 1613-445-1 imaged at 2:41.
Vulpecula stars with Tycho 1613-445-1

Tycho 1612-431-1 imaged last at 2:43.
Vulpecula stars with Tycho 1612-431-1

STF 2523 and KRU 8 are here at the bottom-right. But they are better represented in an image from Friday...

Most were manually identified. did not respond to two attempts.

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