Hemisphere:  Southern  ·  Constellation: Hydra (Hya)  ·  Contains:  G Hya
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NEW DISCOVERY! Strottener-Drechsler Object 20, 



    
        

            Maicon Germiniani
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NEW DISCOVERY! Strottener-Drechsler Object 20

Getting plate-solving status, please wait...
NEW DISCOVERY! Strottener-Drechsler Object 20, 



    
        

            Maicon Germiniani
Powered byPixInsight

NEW DISCOVERY! Strottener-Drechsler Object 20

Imaging telescopes or lenses: Teleskop Service TS 115 / 800 Triplet APO

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Skywatcher AZEQ5

Guiding cameras: QHYCCD Qhy5L II

Focal reducers: TS Optics TS PHOTOLINE 0.79x reducer / corrector

Software: APT - Astro Photography Tool Apt  ·  PixInsight  ·  Deek Sky Stacker 3.3.4  ·  Adobe Photoshop 6 CS

Filters: Optolong H-Alpha 7nm  ·  Astrodon LRGB 1.25" E series Gen 2


Frames: 132x600" (22h)

Integration: 22h


RA center: 09h26m33s.523

DEC center: -22°2816.20

Pixel scale: 2.411 arcsec/pixel

Orientation: -7.777 degrees

Field radius: 0.899 degrees

More info:Open 


Resolution: 1644x2126

Data source: Backyard

Description

NEW DISCOVERY!!

I am happy to announce a new discovery by my dear friends Marcel and Xavier.

I had the opportunity to participate, collecting the data for the composition of this beautiful image.

Strottner-Drechsler Object 20 (StDr Object 20)

The Object is a so called a "cataclysmic nova" and probably it is the lost Nova, which was observed by Chinese astronomers in 1065.

The central star is a binary of a white dwarf and a RRLyr type star. Both stars orbit extremely closely in only 2 solar radii at a distance.

Data: Maicon Germiniani

Discovered in January 2020 by Marcel Drechsler

and Xavier Strottner

Full name: Strottner-Drechsler Object 20 (StDr Object 20)

Analyses: Stefan Kimeswenger, Marcel Drechsler

Technical data:

Telescope triplet 115/800 (Teleskop-Service Ransburg)

Câmera: ZWO ASI 1600MMCool (ZWO Astronomy Cameras)

Halpha: 120x600 - Total 20 hours (Optolong Astronomy Filter)

RGB: 12 x 300 (each channel) - Total 3 hours

A small addition from the discoverers ;-)

In August 1064, Chinese and Korean astronomers observed a new star in the constellation of T'ien-Miao (today Hydra).This new star was only visible in the sky for a short time and was described as "as bright as a lamp".today there is no longer a very bright star in this part of the sky, but Xavier and I discovered a structure in this part of the sky which could probably be the lost remains of the Liao Shih Nova from 1064/1065.

We are very grateful to Stefan Kimeswenger of the Institute of Astro & Particle Physics Innsbruck for the analysis and determination of this extraordinary object, which is a nova event from the interaction of two very close stars. Possibly the structure originates from a relatively short "common envelope" phase of the two stars. The companion star is in the atmosphere of the primary star. This rare event leads to the loss of torque and the ejection of a part of the atmosphere of the primary star.

OBJECT DATA:

Coordinates: 09:26:20.58 -22:23:39.13 (J2000)

Constellation: Hydra

Diameter: 28 up to 94 arc minutes

Comments

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NEW DISCOVERY! Strottener-Drechsler Object 20, 



    
        

            Maicon Germiniani