NED: name not recognized and wrong coordinates

[temuller]

Hi. I have been using astroquery and noticed that some objects names are not recognized when using the NED.query_object() function even though they do work on the NED website (e.g. WISEA J081750.69-054305.6).

I also tried to run the example from the documentation (query region), but got different results.

from astroquery.ipac.ned import Ned
import astropy.units as u
result_table = Ned.query_region("3c 273", radius=0.05 * u.deg)
print(result_table)

No.        Object Name            RA     ... Redshift Points Diameter Points Associations
                               degrees   ...                                             
--- ------------------------- ---------- ... --------------- --------------- ------------
  1  SDSS J133013.73+241535.8  202.55721 ...               0               3            0
  2  SDSS J133014.03+241430.6  202.55847 ...               0               4            0
  3 WISEA J133014.10+241426.7  202.55878 ...               0               0            0
  4  SDSS J133014.15+241452.4  202.55897 ...               0               4            0
  5 WISEA J133014.53+241445.8  202.56055 ...               0               0            0
  6 WISEA J133014.55+241504.4  202.56063 ...               0               0            0
  7  SDSS J133014.85+241423.7  202.56189 ...               0               4            0
...                       ...        ... ...             ...             ...          ...
260 WISEA J133036.89+241610.0  202.65372 ...               0               4            0
261  SDSS J133036.92+241505.0  202.65387 ...               0               4            0
262 WISEA J133037.06+241405.5   202.6544 ...               2               4            0
263  SDSS J133037.17+241358.5  202.65492 ...               0               4            0
264  SDSS J133037.57+241411.2  202.65657 ...               0               4            0
265 WISEA J133037.80+241418.6  202.65751 ...               0               0            0
266 WISEA J133038.71+241619.2  202.66105 ...               0               4            0
267  SDSS J133038.96+241450.1  202.66234 ...               0               4            0
Length = 267 rows

I am using astroquery v0.4.6 on a new anaconda environment with python 3.11. I guess this might be an issue with astroquery and not my environment. Thanks in advance.

[bsipocz]

I don't expect any recent changes that would cause this issue, but then I see the following error message for the query you're running above for 3c 273:

RemoteServiceError: The remote service returned the following error message.
ERROR: The object name that you have submitted is not currently recognized by the NED name interpreter.

[temuller]

For some reason, astroquery.Ned doesn't seem to be retrieving the right coordinates for the objects. I also don't understand why some names would work on the NED website, but not with astroquery. Any ideas?

[jdavies-st]

This seems to have been something temporary with NED's databases. Trying the query above works today.

In [1]: from astroquery.ipac.ned import Ned

In [2]: object_name = "WISEA J081750.69-054305.6"

In [3]: Ned.query_object(object_name)
Out[3]: 
<Table length=1>
 No.         Object Name            RA        DEC      Type  ... Positions Redshift Points Diameter Points Associations
                                 degrees    degrees          ...                                                       
int32           str30            float64    float64   object ...   int32        int32           int32         int32    
----- ------------------------- ---------- ---------- ------ ... --------- --------------- --------------- ------------
    1 WISEA J081750.69-054305.6  124.46121   -5.71828      G ...         4               3               2            0

Using astroquery 0.4.7.