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Helix Nebula by Hubble Photo Print
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20.3 cm x 25.4 cm (8" x 10")
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Helix Nebula by Hubble Photo Print
Helix Nebula by Hubble. The Helix Nebula is thought to be shaped like a prolate spheroid with strong density concentrations towards the filled disc along the equatorial plane, whose major axis is inclined about 21° to 37° from our vantage point. The size of the inner disc is 8×19 arcmin in diameter (0.52 pc); the outer torus is 12×22 arcmin in diameter (0.77 pc); and the outer-most ring is about 25 arcmin in diameter (1.76 pc). We see the outer-most ring as flattened on one side due to its colliding with the ambient interstellar medium. Expansion of the whole planetary nebula structure is estimated to have occurred in the last 6,560 years, and 12,100 years for the inner disc. Spectroscopically, the outer ring's expansion rate is 40 km·s−1, and about 32 km·s−1 for the inner disc.
Customer Reviews
4.9 out of 5 stars rating760 Total Reviews
760 Reviews
Reviews for similar products
5 out of 5 stars rating
By I d.14 July 2019 • Verified Purchase
25.40cm x 20.32cm, Kodak Professional Photo Paper (Satin)
Zazzle Reviewer Program
Thank you to the Zazzle team.
I have purchased from you previously, and I have always been happy with the items I have purchased.
This is a beautiful poem, I love having this poem to read and to know that one day I will see my beautiful puppy dog again. I love the idea of the rainbow bridge.
I think all pet owners will understand the love we share and have for our pets.
This is a sad poem but in a happy way. I will read this every day and think of my puppy dog. The poem is presented beautifully, with a beautiful background, and high quality paper.
I'm very happy with how it turned out, and I love that it can be personalised with our pets name and their date of birth and passing.
To any pet owner who has lost their beautiful dog, I highly recommend this poem.
Thank you again for creating this beautiful and unique product.
5 out of 5 stars rating
By A.23 February 2022 • Verified Purchase
17.32cm x 17.32cm, Kodak Professional Photo Paper (Satin)
Zazzle Reviewer Program
I love how well my design printed. The quality was excellent. I'm very happy with the results. Thank you so much!
5 out of 5 stars rating
By Ruth H.16 March 2021 • Verified Purchase
Zazzle Reviewer Program
Easy to see graphics, accurate mapping of body zones, I can add my branding signature, really happy to use it, I've laminated it to preserve it. Very good thanks, fine
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Product ID: 190253679029599849
Added on 8/2/16, 5:46 pm
Rating: G
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