Hyades Cluster #1 (Molly Wakeling)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 10.14 · 12.49 · 12.67 · 13.12 · 16 Psyche · 201 Penelope · 275 Sapientia · 48 Tau · 54 gam Tau · 55 Tau · 58 Tau · 61 del Tau · 63 Tau · 64 Tau · 68 Tau · 70 Tau · 71 Tau · 73 pi. Tau · 74 Galatea · 74 eps Tau · 75 Tau · 76 Tau · 77 the01 Tau · 78 the02 Tau · 80 Tau · 81 Tau · 84 Tau · 85 Tau · 86 rho Tau · 87 alf Tau · And 26 more.

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Hyades Cluster #1

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Hyades Cluster #1

The Hyades Cluster!

This was the "first light" image from my new Rokinon 135mm f/2 lens (although I shared the Orion widefield first). I took a quick stack of 16x1-minute frames while the camera was cooling. I don't typically image open clusters because I'm not great at processing them and they typically don't come out well for me, but the advantage of using a camera lens is that I can use the lens effects in my favor to make the main stars of interest more prominent.

The Hyades Cluster is the nearest star cluster to Earth, at only 153 lightyears distant, in the constellation Taurus, the bull. It's made up of a group of a few hundred stars that have similar ages, chemical composition, and motion, indicating they had a common birthplace. The stars' average age is 625 million years -- relatively young in star terms, although some of the brighter stars in the cluster are already evolving in giants.

The name Hyades originates from the five daughters of Atlas in Greek mythology, who are half-sisters of the Pleiades, for which another well-known cluster is named. Their brother, Hyas, died, and the weeping sisters were placed in the sky.

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Details:

Date: 9 January 2021

Location: Easy Bay area backyard, CA

Object: Hyades Cluster

Attempt: 1

Camera: ZWO ASI1294MC Pro

Telescope: Rokinon 135mm f/2.8

Accessories: Astronomik CLS-CCD 1.25-inch filter

Mount: iOptron CEM40

Guide scope: Orion 50mm guidescope

Guide camera: QHY5

Subframes: 16x60s (16m)

Gain/ISO: 120

Acquisition method: Sequence Generator Pro

Stacking program: PixInsight 1.8.8-7

Post-Processing program: PixInsight 1.8.8-7

Darks: 0

Biases: 0

Flats: 50

Temperature: +10C

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Status	Advanced success
Started	...
Astrometry.net job	4167240
PixInsight job	8FBOZTA54NIV86K4GBZ75RYGWZ72X3QF
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h27m19s.50
RA (top/left)	04h43m58s.50
RA (top/right)	04h16m04s.58
RA (bottom/right)	04h11m02s.86
RA (bottom/left)	04h38m10s.94

Dec (center)	+16°49′19″.9
Dec (top/left)	+18°45′02″.5
Dec (top/right)	+20°19′23″.4
Dec (bottom/right)	+14°48′59″.0
Dec (bottom/left)	+13°16′43″.5

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Hyades Cluster #1

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