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A Season in Blue Quilt Along - "Supernova" Month 9

Updated: Sep 13, 2023

This month, we will be working on our final block for our sampler quilt.

We have had SEW much fun making individual blocks

from a selection of quilts found in our "A Season in Blue" book.

This has given you a chance to try some of the beautiful patterns

and grow as a quilter, as we created a Block Sampler.

For more information about this event, click here.

Our month 9 block will be from

the "Supernova" quilt on page 130 of our "A Season in Blue" book.

Please note: Fabrics in step-by-step photos and videos may vary from my blocks.

These will be provided to demonstrate the technique, and how to make your blocks

through the step-by-step photos and videos.

I will share with you the fabrics I will be using for this block, but

I encourage you to get creative this year and choose fabrics that you love!

Supernova Block

Let's get started!

Gather your supplies and follow the cutting directions on page 131 of the "A Season in Blue" book.

I recommend 1 light blue, 1 medium blue, 2 dark blues, and 4 light fabrics.

Did you notice our Blue Escape and Seabreeze Collections? These are perfect for this project!

I am going to be using Aurilfil 2325 for piecing,

a Sewline Pencil for marking, and lots of Patchwork pins for pinning.

For our Block Sampler, we will be making 1 of these blocks.

Remember, read through this entire blog before you start cutting.

Don't forget to visit our YouTube channel for helpful hints and gentle guidance.

For one Supernova Block , you will need the following:

Outer Star Points

Cutting: 24 - piece C (light blue fabric)

32 - piece D (light fabric)

4 - piece E (dark blue fabric

4 - piece F (light fabric)

4 - piece B (light fabric)

Eight Point Star

Cutting: 4 - piece G (medium blue fabric)

4 - piece H (light fabric)

4 - piece I (dark blue fabric)

4 - piece J (dark blue fabric)

Assemble a light blue C triangle and a light D triangle.

Join to make a half-square triangle (HST).

Trim dog ears. Press seam allowances towards light blue.

Repeat to make 24 total HSTs.

Sew three HST's into units.

Add a light triangle D to each unit as shown. Press seams towards dark fabrics.

Repeat to make 4 each of Unit 1 and Unit 2 as shown above.

Sew a dark blue diamond E to the end of Unit 1.

Sew a light F piece to Unit 2 as shown.

Sew units together as shown above.

Press seams.

Repeat all steps to make four total Outer Star Points and set aside.

Now we are going to move make one Eight Point Star for a center of our Supernova block.

For basic Eight Point Star directions, I recommend watching our video below to refresh for step-by-step.


Select: 4 - piece G (medium blue fabric)

4 - piece H (light fabric)

4 - piece I (dark blue fabric)

4 - piece J (dark blue fabric)

Pin and sew 1 medium blue diamond and 1 light diamond together.

Make 4 sets total. Press seams in one direction.

Sew those diamond pairs together to make two half stars.

Trim dog-ears. Press seams in one direction.

Sew two half stars together to make a full star. Press seams.

From the wrong side, remove a couple of stitches to open the center seam allowance to allow it to lie flat.

Use "Y" seams to set-in the dark blue J triangles first, then set-in the dark blue I corner squares.

Press seam allowances toward the star. Trim the Eight Point Star Unit to 6¾" x 6¾" if necessary.


Select: 4 - piece B (light fabric)

1 - Eight Point Star

4 - Outer Star Points

Sew one Outer Star Point to an Eight Point Star Unit.

Mark dots ¼" from edges to indicate beginning and stopping points for stitching.

Lock the stitch as you start and stop. As you sew the pieces together, keep the Outer Star Point piece on the bottom (against machine bed) and the star on top (against presser foot). Join pieces, sewing slowly.

In the same manner, sew a second Outer Star Point on the opposite side of the Eight Point Star Unit.

Sew remaining two Outer Star Point pieces into place. Press.

Watch our YouTube video for more details.

Using "Y" seams to set-in 4 B light pieces to complete the block.

Unfinished Block size is 15½" x 15½"

Continue around the block to finish.

For more details please watch our YouTube video.

Congratulations! You are a STAR!

You have now made the Supernova block for your Sampler Quilt.

Here's some color inspiration for you!

The Blue Escape fabrics shining bright for all to see!

The Strawberries and Cream Collection is out of this world!

Can you believe all your hard work?

I can't wait to see how your

color combinations are coming together!

Happy Quilting!

Don't forget to share your pictures with us on Instagram!

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Oct 04, 2023

This was one of the most challenging blocks I have ever made, it sure took the fun & enjoyment out of this SAL & made me choose not to do that quilt! It's still not the right size so I will get creative to see how to fit it in! I have done The most challenging SAL quilt with Edyta of Laundry Basket Quilts.

Oct 10, 2023
Replying to

I agree!


Oct 01, 2023

What is the size of the half square triangles once they are sewn. The book doesnt say. I sewed them up a bit bigger to trim down as i wanted them to be accurate

Oct 03, 2023
Replying to

I also made test block too using 1 1/2” as finished size and cut down to 1 1/2” (as the note said you could use 1 1/2” triangle paper) and that was wrong. I’m now using 2 1/2” squares and making HST (drawing line diagonally and sewing 1/4” on either side of line) and trimming to 2” squares. So far it seems to work.


Sep 12, 2023

I will have to say the SuperNova quilt block is the most difficult block I have ever tried. Absolute accuracy required.. Measure, measure and measure again.

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