Tulip Nebula with Cygnus X-1 Bow Shock (Timothy Straub)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: B144 · HD189474 · HD189528 · HD189594 · HD190114 · HD226826 · HD226868 · HD226909 · HD227018 · HD227150 · LBN 168 · LBN 171 · LDN 847 · Sh2-101

Powered byPixInsight

Tulip Nebula with Cygnus X-1 Bow Shock

Powered byPixInsight

Tulip Nebula with Cygnus X-1 Bow Shock

I wanted to get my 11" HyperStar back in operation. While I have a iOptron CEM 70 that I use in my observatory, I went with my AM5 mount adapted to my permanent pier. The CEM was giving me problems at Oregon Star Party, hence the change of mount.Guiding with the AM5 took some time to dial in, but I averaged about 0.6 total RMS.

I only managed to get 2 hours of data because of clouds moving in, but the Tulip and Cygnus X-1 black hole/bow shock are nicely visible. The star HD226868 is annotated when you hover over the plate solved image. This is the star that is gravitationally bound to the black hole.

PI processing included WBPP to create a drizzle, autocrop master. This master was then processed using a fairly standard PI workflow: DBE, SCNR, SPCC, BX, NX, and then SX. HOO Normalization of the starless image followed by Generalized Hyperbolic Stretch and Curves to adjust color and saturation. Stars: normal histogram stretch, and then curves for color and saturation. Used pixel math to combine starless and stars into a processed image. This was exported as a TIF. Used Photoshop Camera Raw and minor adjustments to offset and saturation.

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
Solar system
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	8536933
PixInsight job	T5P0QGQ3G6HSFMO2TIBXJJE0CSQCTBGN
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m38s.97
RA (top/left)	19h57m36s.44
RA (top/right)	19h56m45s.26
RA (bottom/right)	20h01m43s.75
RA (bottom/left)	20h02m30s.35

Dec (center)	+35°22′07″.3
Dec (top/left)	+34°39′09″.3
Dec (top/right)	+35°57′12″.5
Dec (bottom/right)	+36°04′56″.1
Dec (bottom/left)	+34°46′47″.8

Image Index:

Contribution Index (beta):

Tulip Nebula with Cygnus X-1 Bow Shock

Tulip Nebula with Cygnus X-1 Bow Shock

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Tulip Nebula with Cygnus X-1 Bow Shock

Tulip Nebula with Cygnus X-1 Bow Shock

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information