Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015 (Kirk)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: IC 1396

Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015, Kirk

Powered byPixInsight

Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015

Powered byPixInsight

Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015

The Elephant's Trunk nebula or technically vdB 142 (Van den Berg 142), so named because of its similarity in appearance to a elephant’s trunk. The bright outline around the "trunk" is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive star. The entire IC1396 region is ionized by this massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays. The Elephant's Trunk nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr) stars that were discovered in infrared images in 2003. Two older (but still young, a couple of million years, by the standards of stars, which live for billions of years) stars are present in a small, circular cavity in the head of the globule. Winds from these young stars may have emptied the cavity.

This 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: 11/08/2015 – 11/09/2015

Location: Western Massachusetts

Camera: SBIG STF8300M @ -15°C

Telescope: Stellarvue SV105T (f/7 – fl 735mm) reduced to f/5.6 (fl 588mm)

Mount: Astro-Physics AP1100

Guidescope: 60mm Stellarvue guide scope

Guide Camera: SBIG STi (mono)

Filters:

-Astrodon 3 nm Hydrogen Alpha (Ha): 11 x 30min. (390min.)

-Astrodon 3nm Oxygen III (OIII):08 x 30min. (240min)

-Astrodon 5nm Sulfur II (SII):07 x 30min. (210min)

Total Exposure:780min. (13.0hr)

Limiting Magnitude: 5.1

Comments: Stellarvue SFFR102 field flattener/reducer (0.8)

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	Basic success
Started	...
Astrometry.net job	3516663
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015

Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015

Elephant's Trunk nebula (vdB 142) in IC1396 HST - 2015

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