WebB - V = 0.7 - 0.9 = - 0.2 U - B = -0.24 -0.7 = - 0.94 Generally, the negative values of these color indices are an indication that Spica is a hot star, with most of its radiation coming at shorter wavelengths. On the other hand, for Antares B = 2.7 and V=0.9, and the B - V color index is B - V = 2.7 - 0.9 = 1.8
luminosity - Formula to calculate B-V index? - Astronomy Stack …
WebDiode-Based Temperature Measurement 1 The Diode Just about any silicon diode can be used as a temperature measurement transducer. A diode connected bipolar transistor (BJT) rather than a standard true diode is recommended. This is because BJTs have consistent temperature coefficient which results in smaller errors over temperature. … WebIt has visual magnitude of -1.44, B-V of .009, and a parallax of 379.21 milli arc seconds. Finding its distance from its parallax yields d = 1/p = 1/.37921 = 2.63 parsecs. Its absolute magnitude is M = m - 5 log d + 5 = -1.44 - 5 log (2.63) + 5 = 1.46 We know the temperature of the Sun is 5800K. all primark stores
Astronomical "color" - Rochester Institute of Technology
WebJul 21, 2024 · Bacterial vaginosis signs and symptoms may include: Thin, gray, white or green vaginal discharge Foul-smelling "fishy" vaginal odor Vaginal itching Burning during urination Many women with bacterial vaginosis have no signs or symptoms. When to see a doctor Make an appointment to see your doctor if: WebHere’s how: Take your temperature first thing in the morning. Use a digital BBT thermometer to take your temperature as soon as you wake up. Do it while you’re still … WebRemember, (B-V) = 0.0 for the hot star Vega. (Gray, PASP 107, 120, 1995), though it's actually very hard to measure accurately. The most common color index used in … all primarina moves