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| Only had time to read a little of this before turning it back in. I'll check it out again when I have more time. First edition at WCCLS | Needs better proofreading, some things unclear or badly phrased GONG - Global oscillations network group . Plate IV: HeII 30.4 nm 1240eV-nm/30.4 = 39.5 eV . Plate VII: scale? . Plate VIII: scale, time betweeen images . Plate IX: Sun is turbulent, wouldn't propagation be dispersive? . Plate XI: STEREO mission, orbital spacing L4/L5? . Plate XIII: 15:47 UT -> 236.75 degrees sun angle from Greenwich midnight . 56.75 degrees afternoon . red arrow approximately 60 degrees from Greenwich so points to sun . Aurora log scale from 10 erg2/cm/s at about 10 pm 75N down to 0.3 at noon . 10 mW/m2 ... Near north pole, antarctic magpole 70S, aurora peak 50S . Chapter 1, dumb many-zero numbers . p016 diagram Dunn Solar Telescope, National Solar Observatory, Sacramento Peak, Sunspot, New Mexico . 100 meters vertical, 41 m above, 59 m hole, floats in 9000 kg mercury tank . p031 Hertzsprung-Russell Diagram / Hipparcos 29606 stars / Next ESA GAIA . p044 George Hale, Zeeman Splitting of Sunspots -> 3000 gauss . p044 Richard Carrington sunspot activity drifts towards equator. butterfly diagram of occurrence, 11 year average cycle . p046 Maunder minimum, no sunspots 1645-1715, p047 fewer auroras and weaker corona . p053 5GY in future, helium burning, core from 15M to 100M degrees, triple alpha He > Be > C, helium flash, a few seconds in some stars . p054 then shrink, then a few hundred million years. Pulsations of 1e9 times solar wind, making "planetary nebula" shells . KHL? do some of these form cold planet-like globs, pulled loose into interstellar space? .p057 most light from "2/3" density level .p059 [[ https://en.wikipedia.org/wiki/Limb_darkening | limb darkening ]] because 2/3 density occurs higher, tangent effect |
Nearest Star
The Surprising Science of our Sun
Second Edition, Leon Golub, Jay M. Pasachoff, Cambridge University Press, Central Library, 523.7 G629n 2014
Needs better proofreading, some things unclear or badly phrased
GONG - Global oscillations network group
- Plate IV: HeII 30.4 nm 1240eV-nm/30.4 = 39.5 eV
- Plate VII: scale?
- Plate VIII: scale, time betweeen images
- Plate IX: Sun is turbulent, wouldn't propagation be dispersive?
- Plate XI: STEREO mission, orbital spacing L4/L5?
Plate XIII: 15:47 UT -> 236.75 degrees sun angle from Greenwich midnight
- 56.75 degrees afternoon
- red arrow approximately 60 degrees from Greenwich so points to sun
- Aurora log scale from 10 erg2/cm/s at about 10 pm 75N down to 0.3 at noon
- 10 mW/m2 ... Near north pole, antarctic magpole 70S, aurora peak 50S
- Chapter 1, dumb many-zero numbers
- p016 diagram Dunn Solar Telescope, National Solar Observatory, Sacramento Peak, Sunspot, New Mexico
- 100 meters vertical, 41 m above, 59 m hole, floats in 9000 kg mercury tank
- p031 Hertzsprung-Russell Diagram / Hipparcos 29606 stars / Next ESA GAIA
p044 George Hale, Zeeman Splitting of Sunspots -> 3000 gauss
- p044 Richard Carrington sunspot activity drifts towards equator. butterfly diagram of occurrence, 11 year average cycle
- p046 Maunder minimum, no sunspots 1645-1715, p047 fewer auroras and weaker corona
p053 5GY in future, helium burning, core from 15M to 100M degrees, triple alpha He > Be > C, helium flash, a few seconds in some stars
- p054 then shrink, then a few hundred million years. Pulsations of 1e9 times solar wind, making "planetary nebula" shells
- KHL? do some of these form cold planet-like globs, pulled loose into interstellar space?
- p057 most light from "2/3" density level
p059 limb darkening because 2/3 density occurs higher, tangent effect