Measuring Variable Stars with the Seestar S30: A Night Chasing the 88-Minute Period of CY Aqr

I tried out the newly added "Photometry Mode" on the Seestar.Until now, I have mostly used the Seestar S30 to photograph ...

Calculating the Break-Even Point Between Variable Interest Rates and Flat 35 in an Era of Continued Rate Hikes

Before applying for a mortgage, I pause when comparing the figures: variable interest rates are in the 1% range, while Flat 35 is in the 3.8% range. With the Bank of Japan continuing to raise interest ...

Annuity Derivation vs. Perpetuity Derivation: What’s the Difference?

The difference between an annuity derivation and a perpetuity derivation is related to their distinct time periods. An ...