Blog
Group Intrinsic
The group of Intrinsic variable stars is classified based on internal stellar structure causing the changes to the star, and thus the variability to their flux. It covers most of the variable star classes: Eruptive, Cataclysmic, and Pulsation.
Stellar Death – High Mass Stars
High mass stars have a more stable evolution from one fusion process to the next. As iron fills the core, the star begins to implode and fall into itself. There are two types of supernovae, based on the hydrogen content.
Stellar Life after the Main Sequence
The path a star takes after the main sequence is dependent on the star's mass. Stages 8-11 are Subgiant Branch, Red-Giant Branch, Helium Fusion/Horizontal Branch, and Asymptotic Giant Branch.
Doppler Shift
The Doppler shift is the change of a wavelength with motion, and is most used in astronomy in the field of spectroscopy
Stellar Life Interstellar Medium to the Main Sequence
The process from the interstellar medium to the main sequence is how a star forms.
HR Diagram and Star Clusters
Clusters (which come in open, associations, and globular varieties) provide the best means for us to compare theories to actual stellar evolution and can be studied via photometry and spectroscopy.
Analyzing the Proper Motion of Two Double Star Systems from Astrometric Measurements
Author: Parra, A., Beltzer-Sweeney, A., Stojimirovic, I., Boyce, P., and Boyce[pdf-embedder...
CCD Astrometric Measurements of WDS 13513-3928 (HJ 4618)
Authors: Pat Boyce, Grady Boyce
Astrometric Measurements of WDS 17033+5935
Authors: Christian Blanco, Mark Powers, David Gorial, Alexander Beltzer-Sweeney, Irena Stojimirovic, Ilze Sarma, Theresa Woods, Pat Boyce, and Grady Boyce
A Community – Centered Astronomy Research Program
Authors: Mattie Sanseverino, Nathan Bradshaw, Kathryn Chan, Vasundhara Sengupta, Nima Fariborzi, Grady Boyce, and Pat Boyce
DoubleSTARS seminar – Starts February 17
Do astronomical research and write your first scientific paper for publication. Each Wednesday night at 8:00 we...
New Exoplorer Seminar – January 6 – Sign Up Now
Our new seminar to become an exoplanet observer and learn photometry will start on January 6 and end on February...
It’s Time to Start IntroSTARS – It’s FREE
Now is the perfect time to start IntroSTARS. Learn basic astronomy in our self-paced online course that can be done...
TESS observation paper just published
Jeremy Ha authored Guidelines for TESS Aperture Photometry via AstroImageJ based on his experience analyzing early...
DoubleSTARS™ Fall Seminar – Starts September 9
The Fall 2020 DoubleSTARS™ Seminar will begin at 8:00 PM on 9//9/2020 with an online Zoom meeting. All...
IntroSTARS™ – Free / Self-Paced – Sign Up Anytime
BRIEF is now offering its IntroSTARS™ online course for the astrophysics fundamentals needed to enroll in...