Sh2-101 – The Tulip Nebula HST (Kirk)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg)

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Sh2-101 – The Tulip Nebula HST

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Sh2-101 – The Tulip Nebula HST

Object: Sh2-101 – The Tulip Nebula HST - 2017

Sharpless 101 is a Hydrogen II region, emission nebula located in the constellation Cygnus. It is called the Tulip Nebula by astrophotographers because it resembles the outline of a tulip.

- Magnitude: 9

- Constellation: Cygnus

- Apparent dimensions (V): 16' x 9'

- Designations: Sharpless 101, Sh2-101, Cygnus Star Cloud, The Tulip Nebula

- Apparent magnitude (V): 9

- Distance: 6,000 ly (1,800 pc)

This image was done using the HST or Hubble Space Telescope Palette which is accomplished by combining sub frames using three narrowband filters that capture light produced by glowing hydrogen (Ha), oxygen (OIII) and sulfur (SII) present in the nebula. Green is assigned to hydrogen, blue to oxygen and red to the sulfur.

Acquisition Date: 08/20/2017 – 08/27/2017

Location: Western Massachusetts

Camera: SBIG STF8300M @ -10°C

Telescope: Takahashi FSQ106EDX-III

Mount: Astro-Physics AP1100

Guide scope: Off Axis Guiding

Guide Camera: Starlight Express Lodestar 2

Filters:

-Astrodon 3 nm Hydrogen Alpha (Ha): 12 x 30min. (360min) bin 1x1

-Astrodon 3nm Oxygen III (OIII): 13 x 30min. (3900min) bin 1x1

-Astrodon 5nm Sulfur II (SII): 13 x 30min. (390min) bin 1x1

Total Exposure: 1140min. (19hr)

Limiting Magnitude: 5.1

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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Star trails
Northern lights
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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
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Amateur hosting facility
Public amaeteur data
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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	Basic success
Started	...
Astrometry.net job	1952669
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Sh2-101 – The Tulip Nebula HST

Sh2-101 – The Tulip Nebula HST

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