Exoplanet smaller than Earth (WD 1145+017b) (sky-watcher (johny))

Celestial hemisphere: Northern · Constellation: Virgo (Vir)

Exoplanet smaller than Earth (WD 1145+017b), sky-watcher (johny)

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Exoplanet smaller than Earth (WD 1145+017b)

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Exoplanet smaller than Earth (WD 1145+017b)

The image above shows the photometry of the transit of the "sub-Earth" Exoplanet,

WD 1145+017b.

Imaged on 2021 February 14th between 22h 50 - 0h 25 UT

WD 1145+017b is a disintegrating rocky minor planet(planetesimal), transiting the White dwarf star WD 1145+017, located in the constellation Virgo

Distance from Earth is about 570 ly.

This is a really tiny planet with a radius of about 1000 km

It is much smaller than Earth, actually is smaller than our Moon(radius of Moon : 1738 km).

The host star is also a very small star with a radius 1.4 times the radius of the earth, only because of this fact it is possible to do photometry of the transit of such a small planetesimal. The Transit depth is up to about 0,5 mag.

This is the first observed planetary object transiting a white dwarf, discovered by the Kepler space telescope in 2015.

Rev. C shows 3 asteroids that I additionally found in the stacked image 😊

Original
B
C
Final
D

B

Description: Detailed Light curve for WD 1145+017b

Uploaded: ...

C

Description: Additionally 3 Asteroids

Uploaded: ...

D

Description: Second observation showing the whole transit. Taken on 2021 March 6th

Uploaded: ...

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Status	Basic success
Started	...
Astrometry.net job	4255649
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Exoplanet smaller than Earth (WD 1145+017b)

Exoplanet smaller than Earth (WD 1145+017b)

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Image Index:

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Exoplanet smaller than Earth (WD 1145+017b)

Exoplanet smaller than Earth (WD 1145+017b)

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D

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