K-Tec

Sirius

8 months 30 minutes ago #107025 by mariosi
Sirius
(/ˈsɪriəs/, a romanization of Greek Σείριος, Seirios, lit. "glowing" or "scorching") is a star system and the brightest star in the Earth's night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The system has the Bayer designation Alpha Canis Majoris (α CMa). What the naked eye perceives as a single star is a binary star system, consisting of a white main-sequence star of spectral type A0 or A1, termed Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from its companion varies between 8.2 and 31.5 AU.(Wikipedia)

Dob 10inches 1200/f4.7
26mm Meade QX 70°

Thanks for looking
Marios

Attachments:
The following user(s) said Thank You: michael_murphy, lunartic, flt158, Fermidox

Please Log in to join the conversation.

7 months 4 weeks ago #107026 by ploughc
Beautiful photo of Sirius Mariosi , did you use a mask.

Pat.
The following user(s) said Thank You: mariosi

Please Log in to join the conversation.

7 months 4 weeks ago #107027 by mariosi

ploughc wrote: Beautiful photo of Sirius Mariosi , did you use a mask.

Pat.


No mask. Close up the sketch. The rays are not appear the same time.

Marios

Please Log in to join the conversation.

7 months 4 weeks ago #107028 by flt158
I wonder if the B companion is visible in this amazing sketch, Marios.

Aubrey.
The following user(s) said Thank You: mariosi

Please Log in to join the conversation.

7 months 3 weeks ago #107029 by mariosi

flt158 wrote: I wonder if the B companion is visible in this amazing sketch, Marios.

Aubrey.

Aubrey,
I should have known about B companion and I'm sorry about that. I don't see anything else but only one bright star.

Marios
The following user(s) said Thank You: flt158

Please Log in to join the conversation.

7 months 3 weeks ago #107030 by flt158
I wonder if it is the star at 8 o'clock.
Which way is up and which way is east on your brilliant picture?
It ought to be easy to figure out once we know that information.

Aubrey.
The following user(s) said Thank You: mariosi

Please Log in to join the conversation.

7 months 3 weeks ago #107031 by Fermidox
I'm pretty sure Sirius B is caught in the glare at this scale Aubrey. The star at 8 o'c is further away than some of the other stars, but there wouldn't be anything closer to Sirius visible in a 10" scope. Here's a pic I took in 2016 through an 8 inch and the Pup is similarly drowned out in the glare -



Finbarr.
The following user(s) said Thank You: flt158, mariosi

Please Log in to join the conversation.

7 months 3 weeks ago #107032 by mariosi

Fermidox wrote: I'm pretty sure Sirius B is caught in the glare at this scale Aubrey. The star at 8 o'c is further away than some of the other stars, but there wouldn't be anything closer to Sirius visible in a 10" scope. Here's a pic I took in 2016 through an 8 inch and the Pup is similarly drowned out in the glare -



Finbarr.


Thank you very much for the informations Aubrey and Finbarr!!

Many thanks
Marios

Attachments:
The following user(s) said Thank You: flt158, Fermidox

Please Log in to join the conversation.

Time to create page: 0.098 seconds
Powered by Kunena Forum