NGC 2440 Albino Butterfly Nebula (rdhand)

Celestial hemisphere: Southern · Constellation: Puppis (Pup) · Contains: HD62081 · HD62167 · HD62240 · NGC 2440

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NGC 2440 Albino Butterfly Nebula

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NGC 2440 Albino Butterfly Nebula

NGC 2440 is planetary nebula about 4000 light-years distant and .64 light-years across. It has several nick names including Albino Butterfly Nebula, Burning Ember Nebula, and Kiss Nebula. NGC 2440’s chaotic structure suggests that the aging star shed its mass several times. Each time, the star expelled material in a different direction, which produced the nebula’s bow-tie–shaped lobes. The nebula’s colors correspond to material expelled by the star. Ionized helium is blue, ionized oxygen is blue-green and ionized nitrogen and hydrogen are red. It is moving away form us at 63 kilometers per second. Its central star is possibly the hottest known white dwarf star. It has an exceptionally high surface temperature of about 360,000 Fahrenheit. It is 1,100 more luminous than the sun with a mass .6 of the sun. To travel there on a Concord airplane traveling a twice the speed of sound would take 1.75 billion years.

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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	6933988
PixInsight job	REG1L2D7AQZ4DCZF676PZ9PBZ6NR3GP1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h41m55s.353
RA (top/left)	07h42m24s.133
RA (top/right)	07h41m26s.975
RA (bottom/right)	07h41m26s.489
RA (bottom/left)	07h42m23s.794

Dec (center)	-18°12′47″.70
Dec (top/left)	-18°02′47″.34
Dec (top/right)	-18°02′43″.15
Dec (bottom/right)	-18°22′46″.62
Dec (bottom/left)	-18°22′50″.92

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NGC 2440 Albino Butterfly Nebula

NGC 2440 Albino Butterfly Nebula

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Image Index:

Contribution Index (beta):

NGC 2440 Albino Butterfly Nebula

NGC 2440 Albino Butterfly Nebula

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