Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)

Image of the day 02/18/2021

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NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
NEW DISCOVERY: Drechsler 21 in Andromeda
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NEW DISCOVERY: Drechsler 21 in Andromeda

Image of the day 02/18/2021

Getting plate-solving status, please wait...
NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
NEW DISCOVERY: Drechsler 21 in Andromeda
Powered byPixInsight

NEW DISCOVERY: Drechsler 21 in Andromeda

Equipment

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Acquisition details

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Description

Drechser 21 (PNG 107.1-14.8) is a new, and by a spectrum confirmed planetary nebula and was already discovered by me in May 2019. The PN has a size of about 8 arc min and is located in the constellation Andromeda.

More information about Dr 21:

http://planetarynebulae.net/FR/page_np.php?id=505

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Dr 21 was, as always, masterfully photographed by my friend, the Austrian astrophotographer Markus Blauensteiner at the Ursa Major Observatory (ROSA remote observatory southern alps).

Interesting fact: In the south of Dr 21, but still within the nebula, Markus Blauensteiner and I discovered another potential PN, which is far behind Dr 21. Visually, however, it gives the impression that both PNs are connected. The second PN was named "DrBl 1" (PNG 107.1-14.9).

More information about DrBl 1:

http://planetarynebulae.net/FR/page_np.php?id=816

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Telscope & Camera:

Lacerta N25010c Newtonian, f/D = 4

SX Trius 694, Baader LRGB filter

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Exposure time:

[OIII] 31x20 min / Ha 59x20 min / RGB 13x5 min per filter.

33 h 15 min

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Photo: Markus Blauensteiner

Image processing: Marcel Drechsler

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Dr 21 (PNG 107.1-14)

Coordinates: 23:23:49.89 +45:16:54.43

Comments

Revisions

  • Final
    NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
    Original
    NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
    B
    NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
    C
    NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
    D
    NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
    E
    NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler
    F

B

Description: H-alpha

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C

Description: OIII

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D

Description: central white dwarf

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E

Description: Spectrum

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F

Description: Possible second PN "DrBl 1" in the south of Dr 21

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Sky plot

Sky plot

Histogram

NEW DISCOVERY: Drechsler 21 in Andromeda, Marcel Drechsler