Ain (Reg Pratt) - AstroBin

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 74 Tau) · 74 eps Tau · Ain · HD28139 · HD284469 · HD284470 · HD284471 · HD285765 · HD285833 · HD285834 · HD285842 · LBN 819 · LDN 1543 · Oculus Boreus (ε Tau · The star Ain

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Ain

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Ain

ε Tauri aka Ain, is located 146 light-years away from our Sun in Taurus where it serves as one of the constellations main stars. It is also a member of the Hyades open cluster. At an estimated 625 million years old this formally spectral type A now exists as a K0III giant. Having exhausted its hydrogen stores it now sustains fusion in its core by burning helium. And though Ain has lost a lot of its former mass it still weighs in at an estimated 2.57 solar masses.

Surrounding this monster is an extensive collection of molecular clouds. Most relevant to this frame are LBN 819 and LDN 1543 (bottom right). What I love about this scene is how it feels like a cosmic battle where the star must remain luminous or be enveloped by the clouds and relegated to darkness. In actuality once K0III stars reach the end of their multi-billion year lifespans they eject their outer gas layers creating a planetary nebula.

ZWO ASI2600MM Pro
Unique or Unusal Deep Sky Targets
Fast Newtonians
IOptron CEM
Dark Nebula

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	9074255
PixInsight job	6R4RM7QFZIS77BJ8P6K4YVC25WO6UPKE
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	04h28m35s.408
RA (top/left)	04h31m15s.420
RA (top/right)	04h25m43s.135
RA (bottom/right)	04h25m56s.233
RA (bottom/left)	04h31m26s.797

Dec (center)	+19°11′07″.10
Dec (top/left)	+19°39′25″.55
Dec (top/right)	+19°35′07″.86
Dec (bottom/right)	+18°42′39″.48
Dec (bottom/left)	+18°46′56″.67

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