Astropy - Astroquery如何在Simbad中找到震级？

Question

在其他参数中，我试图使用天文查询和Simbad找到一些对象的大小。我认为量值的大小是可以投票的，但是当我调用Simbad.add_votable_fields('measurements')时，我得到了一个错误：

Exception: No table found in VOTABLE file

完整的代码示例：

from astroquery.simbad import Simbad
import pandas as pd

inputObject = 'ABELL 2218; M33; M31; M101; M42; M98'
listObject = inputObject.split(';')

Simbad.add_votable_fields('z_value','rv_value','dim_majaxis','dim_minaxis','measurements')

dff = Simbad.query_objects(listObject).to_pandas()


dff.drop(dff.iloc[:, 3:11], inplace=True, axis=1)   #delete some columns
dff.drop(dff.columns[-1], axis=1, inplace=True)     #also drop last column
Simbad.remove_votable_fields('z_value','rv_value','dim_majaxis','dim_minaxis','measurements')
#show data
dff.style.format(precision=5,na_rep='No data')

Answer 1

mags位于VOtable字段中：

flux(B), flux(V), flux(R), flux(I)