Age of the Sun

[DanielAndreasen]

Hi Tim,

Maybe I'm doing something embarrasing wrong, but I'm not able to get the right age of the Sun (4.567Gyr) using Dartmouth isochrones.

import numpy as np
from isochrones.dartmouth import Dartmouth_Isochrone
dar = Dartmouth_Isochrone()
mass, feh = 1.00, 0.00
age10 = dar.agerange(mass, feh)
age10 = np.mean(age10)
age = 10**age10/1e9  # This is 3.490Gyr

[timothydmorton]

The agerange method returns the min and max age allowed by the models. Outside of this range properties will be nan. There's no reason that the mean of this range should be the age of the sun. On Tue, Aug 16, 2016 at 10:30 Daniel Thaagaard Andreasen < notifications@github.com> wrote:

Hi Tim,

Maybe I'm doing something embarrasing wrong, but I'm not able to get the right age of the Sun (4.567Gyr) using Dartmouth isochrones.

import numpy as np from isochrones.dartmouth import Dartmouth_Isochrone dar = Dartmouth_Isochrone() mass, feh = 1.00, 0.00 age10 = dar.agerange(mass, feh) age10 = np.mean(age10) age = 10**age10/1e9 # This is 3.490Gyr

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[DanielAndreasen]

Ahh I see. I didn't use it correctly. Thanks :)