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Graduation Congratulations, Star Cluster Astronomy Card

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18 pt thickness / 120 lb weight Soft white, soft eggshell texture
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Size: Standard, 12.7 cm x 17.8 cm

Thank you, hello, or I love you, custom greeting cards are thoughtful gifts that are always the perfect way to express yourself.

  • Dimensions: 12.7 cm x 17.78 cm (5 x 7") (portrait); 17.78 cm x 12.7 cm (7"x 5") (landscape)
  • Full colour CMYK print process
  • Double sided printing for no additional cost

Paper Type: Signature Matte

Our Signature Matte paper is a customer favorite—smooth to the touch with a soft eggshell texture that elevates any design. Its sturdy 18 pt weight and natural feel make it the ideal choice for timeless, sophisticated events.

  • Exclusively made for Zazzle
  • Made and Printed in the USA
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About This Design

Graduation Congratulations, Star Cluster Astronomy Card

Graduation Congratulations, Star Cluster Astronomy Card

Galaxies, Stars and Nebulae series The star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 that extends one degree on the sky in the direction of the Scorpius constellation. Part of the nebula is ionised by the youngest (bluest) heavy stars in Pismis 24. The intense ultraviolet radiation from the blazing stars heats the gas surrounding the cluster and creates a bubble in NGC 6357. The presence of these surrounding gas clouds makes probing into the region even harder. One of the top candidates for the title of "Milky Way stellar heavyweight champion" was, until now, Pismis 24-1, a bright young star that lies in the core of the small open star cluster Pismis 24 (the bright stars in the Hubble image) about 8,000 light-years away from Earth. Pismis 24-1 was thought to have an incredibly large mass of 200 to 300 solar masses. New NASA/ESA Hubble measurements of the star, have, however, resolved Pismis 24-1 into two separate stars, and, in doing so, have "halved" its mass to around 100 solar masses. Image code: sclustpsms Image credit: NASA/ESA Hubble

Customer Reviews

4.9 out of 5 stars rating1.3K Total Reviews
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5 out of 5 stars rating
By Jeanette G.10 July 2025Verified Purchase
Folded Greeting Card, Size: Standard, 12.7 cm x 17.8 cm, Paper: Signature Matte, Envelopes: White
Card is perfect. Good quality. Arrived on time. Highly recommend seller & happily use seller again. 101%.
5 out of 5 stars rating
By J.29 June 2019Verified Purchase
Folded Greeting Card, Size: Standard, 12.7 cm x 17.8 cm, Paper: Signature Matte, Envelopes: White
Zazzle Reviewer Program
This card was great and my young niece graduating as a doctor just loved it. It wasn't duplicated and the card stood out. Thank you. Everything was 5 Star.... the colours, the printing, and Personalisation is a bonus.
5 out of 5 stars rating
By M.29 July 2019Verified Purchase
Folded Greeting Card, Size: Standard, 12.7 cm x 17.8 cm, Paper: Signature Matte, Envelopes: White
Zazzle Reviewer Program
My card was perfect, good quality card & envelope, I wanted something different & personalized, it definitely did not disappoint. My daughter loved it. The printing was fantastic, it was even better than I expected, I was very pleased with the card.

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Folded Greeting Cards
graduatinghonoursdegreesgraduationpassing outstarsgalaxiessclustpsmsouter spaceastronomy
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graduatinghonoursdegreesgraduationpassing outstarsgalaxiessclustpsmsouter spaceastronomy

Other Info

Product ID: 137370413704076236
Created on 03/02/2013, 12:48
Rating: G