APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Comments and questions about the APOD on the main view screen.
User avatar
APOD Robot
Otto Posterman
Posts: 5370
Joined: Fri Dec 04, 2009 3:27 am

APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Post by APOD Robot » Thu Nov 23, 2023 5:06 am

Image Along the Taurus Molecular Cloud

Explanation: The cosmic brush of star formation composed this interstellar canvas of emission, dust, and dark nebulae. A 5 degree wide telescopic mosaic, it frames a region found north of bright star Aldebaran on the sky, at an inner wall of the local bubble along the Taurus molecular cloud. At lower left, emission cataloged as Sh2-239 shows signs of embedded young stellar objects. The region's Herbig-Haro objects, nebulosities associated with newly born stars, are marked by tell-tale reddish jets of shocked hydrogen gas. Above and right T Tauri, the prototype of the class of T Tauri variable stars, is next to a yellowish nebula historically known as Hind's Variable Nebula (NGC 1555). T Tauri stars are now generally recognized as young, less than a few million years old, sun-like stars still in the early stages of formation.

<< Previous APOD This Day in APOD Next APOD >>

User avatar
Ann
4725 Å
Posts: 13421
Joined: Sat May 29, 2010 5:33 am

Re: APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Post by Ann » Thu Nov 23, 2023 5:52 am

ngc1555wide1024[1].jpg
Along the Taurus Molecular Cloud
Image Credit & Copyright: Yuexiao Shen, Joe Hua
APOD Robot wrote: Above and right T Tauri, the prototype of the class of T Tauri variable stars, is next to a yellowish nebula historically known as Hind's Variable Nebula (NGC 1555).
🤔 :?:

For a numbskull person like me, those instructions were not too clear. But I guess this is it:

T Tauri from Guide annotated.png
APOD 23 November 2023 detail annotated.png

Ann
You do not have the required permissions to view the files attached to this post.
Color Commentator

Locutus76
Ensign
Posts: 26
Joined: Tue Aug 14, 2018 1:10 pm

Re: APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Post by Locutus76 » Thu Nov 23, 2023 10:55 am

Ann wrote: Thu Nov 23, 2023 5:52 am
For a numbskull person like me, those instructions were not too clear.

Ann
Indeed, I was looking for the T Tauri star, thinking it was the bright one at top center. But that didn’t seem to make much sense. Had to look very closely at the full image to find the actual T Tauri. Thanks for your clarification!

rwlott
Ensign
Posts: 40
Joined: Fri May 06, 2011 7:05 pm

Re: APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Post by rwlott » Thu Nov 23, 2023 7:06 pm

APOD Turkey.png
You do not have the required permissions to view the files attached to this post.

User avatar
johnnydeep
Commodore
Posts: 2849
Joined: Sun Feb 20, 2011 8:57 pm

Re: APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Post by johnnydeep » Thu Nov 23, 2023 9:10 pm

Yeah, as others have already opined, the location of T Tauri was far from clearly stated in this APOD. Oh how a little tell-tale annotation would have helped! And many Thanksgiving Day (here in the U.S.) thanks to Ann for providing it (as she often does)!
--
"To B̬̻̋̚o̞̮̚̚l̘̲̀᷾d̫͓᷅ͩḷ̯᷁ͮȳ͙᷊͠ Go......Beyond The F͇̤i̙̖e̤̟l̡͓d͈̹s̙͚ We Know."{ʲₒʰₙNYᵈₑᵉₚ}

starsurfer
Stellar Cartographer
Posts: 5330
Joined: Thu Mar 15, 2012 7:25 pm

Re: APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Post by starsurfer » Thu Nov 23, 2023 10:42 pm

Isn't Sh2-239 classed as a reflection nebula?

User avatar
Chris Peterson
Abominable Snowman
Posts: 18179
Joined: Wed Jan 31, 2007 11:13 pm
Location: Guffey, Colorado, USA

Re: APOD: Along the Taurus Molecular Cloud (2023 Nov 23)

Post by Chris Peterson » Thu Nov 23, 2023 11:14 pm

starsurfer wrote: Thu Nov 23, 2023 10:42 pm Isn't Sh2-239 classed as a reflection nebula?
No, it's an emission nebula. Embedded in a dark nebula.
Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com