Fundraising September 15, 2024 – October 1, 2024
About fundraising
books search
books
Fundraising:
28.8% raised
Log In
Log In
to access more features
personal recommendations
Telegram Bot
download history
send to Email or Kindle
manage booklists
save to favorites
Personal
Book Requests
Explore
Z-Recommend
Booklists
Most Popular
Categories
Contribution
Donate
Uploads
Litera Library
Donate paper books
Add paper books
Search paper books
My LITERA Point
Terms search
Main
Terms search
search
1
Discovery of Eight Variable Stellar Spectra (1916)(en)(2s)
Shapley H.
spectrum
shapley
spectra
maximum
cepheids
equation
linear
spectral
variables
adams
cephei
dependence
differential
functions
intensity
observed
proceedings
range
relative
appears
cassiopeiae
cluster
contains
dispersion
eleven
february
mathematics
objective
periodically
prism
showing
smaller
solutions
vary
1b_
7.9i6
accompanying
appearance
approach
astronomy
aurigae
bo5tis
bo6tis
briefly
capable
carnegie
cepheid
cephet
characteristic
classification
Language:
english
File:
PDF, 221 KB
Your tags:
0
/
0
english
2
Dependence of the Spectral Relation of Double Stars Upon Distance(en)(4s)
Perrine C. D.
spectral
fainter
components
spectra
component
pairs
brightness
distant
distance
magnitude
motion
perrine
astronomy
brighter
difference
harvard
investigation
motions
average
belong
evidence
galactic
groups
mass
regions
smaller
spectrum
absolute
appear
binary
catalog
cephei
composite
conclusion
contrasts
definite
depend
doubt
exception
larger
largest
noted
obs
observed
rapidly
remainder
selected
separations
strongly
tendency
Language:
english
File:
PDF, 350 KB
Your tags:
0
/
0
english
1
Follow
this link
or find "@BotFather" bot on Telegram
2
Send /newbot command
3
Specify a name for your chatbot
4
Choose a username for the bot
5
Copy an entire last message from BotFather and paste it here
×
×