LBN 468 and PV Cephei, Exotic dust of Cefeo ( Toni Mancera )

LBN 468 and PV Cephei, Exotic dust of Cefeo

Imaging Telescopes Or Lenses: Orion 8" Newtonian
Imaging Cameras: Atik 383L+ Mono
Mounts: Sky-Watcher EQ6 Pro
Filters: R · B · G · L
Accessories: Starlight Xpress Fliter Wheel · Enfocador Seletek · Lunatico Astronomia Seletek · TS Coma corrector 2"
Software: PixInsight · Maxim DL
Guiding Telescopes Or Lenses: Lunatico Astronomia EZG-60
Guiding Cameras: QHYCCD QHY5

Dates:: June 24, 2012
Frames:: B: 8×300″(40′) bin 2×2
G: 8×300″(40′) bin 2×2
L: 21×600″(3h 30′) bin 1×1
R: 8×300″(40′) bin 2×2
Integration:: 5h 30′
Avg. Moon age:: 4.67 days
Avg. Moon phase:: 22.70%

Resolution: 1625x1240

File size: 1.2 MB

Locations: Revolcadores Observatory, Cañada de la Cruz, Murcia, Spain

PV Cephei (HH 215, Gyulbudaghian's variable Nebula) is a bipolar reflection nebula. It is similar to the famous Hubble's Variable Nebula NGC 2261. The nebula, that changes its shape and luminosity too, discovered by Armen Gyulbudaghian Russian astronomer in 1977. This nebula is generated by shock waves from a contracting protostar, PV cephei. The bipolar structure is barely visible at the left side of PV cep, it is shaded by the dark dust clouds.

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

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.
Dismissals 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	n/a
Started	n/a
Astrometry.net job	n/a
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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